Put the verb in brackets into the present indefinite, future indefinite and the future continuous. 1)...

Давайте подробно разберем, как поставить глаголы в скобках в Present Indefinite (настоящее простое время), Future Indefinite (будущее простое время) и Future Continuous (будущее длительное время) в предложениях по заданию.

1) Don't ring her up at 12 o'clock. She (write) her composition then.

• Present Indefinite: She writes her composition every day at 12 o'clock.
• Future Indefinite: She will write her composition tomorrow at 12 o'clock.
• Future Continuous: She will be writing her composition then (в данном случае используется Future Continuous, потому что действие будет происходить в конкретный момент в будущем, в 12:00).

2) At this time tomorrow the boys of our group (play) football.

• Present Indefinite: The boys of our group play football regularly.
• Future Indefinite: The boys of our group will play football tomorrow.
• Future Continuous: At this time tomorrow, the boys of our group will be playing football (длительное действие в определённое время в будущем).

3) When we arrive in Moscow, it will probably (rain).

• Present Indefinite: It rains often in Moscow.
• Future Indefinite: It will probably rain when we arrive in Moscow (действие произойдет в будущем, но не длительное).
• Future Continuous: It will probably be raining when we arrive in Moscow (можем использовать Future Continuous, чтобы подчеркнуть, что дождь уже будет идти в момент нашего прибытия).

4) It is nearly autumn, soon the leaves (change) colour.

• Present Indefinite: The leaves change colour every autumn.
• Future Indefinite: The leaves will change colour soon (обычное будущее действие).
• Future Continuous: The leaves will be changing colour soon (действие будет происходить в течение какого-то времени в будущем).

5) I (be) in Irkutsk tomorrow morning.

• Present Indefinite: I am in Irkutsk every morning.
• Future Indefinite: I will be in Irkutsk tomorrow morning (указание на будущее местонахождение).
• Future Continuous: I will be being in Irkutsk tomorrow morning (данное предложение с Future Continuous звучит неестественно, так как 'be' редко используется в этом времени).

6) My cousin (be) 21 years old next year.

• Present Indefinite: My cousin is 21 years old now.
• Future Indefinite: My cousin will be 21 years old next year (конкретное событие в будущем).
• Future Continuous: My cousin will be being 21 years old next year (не используется, так как возраст — это состояние, а не процесс).

7) "We (come) at 5 o'clock." "Good, I (wait) for you."

• Present Indefinite: We come at 5 o'clock every day. / I wait for you regularly.
• Future Indefinite: We will come at 5 o'clock. / I will wait for you (обозначение будущих действий).
• Future Continuous: We will be coming at 5 o'clock. / I will be waiting for you (длительное действие — ожидание).

8) At this time next week they (sit) in the train on their way to Moscow.

• Present Indefinite: They sit in the train every Friday.
• Future Indefinite: They will sit in the train next week.
• Future Continuous: At this time next week, they will be sitting in the train (длительное действие в определённый момент будущего).

9) If you (want) to see us, come to Tom's on Sunday. We (wait) for you there at midday.

• Present Indefinite: If you want to see us, we wait for you at Tom's every Sunday.
• Future Indefinite: If you want to see us, we will wait for you at Tom's on Sunday.
• Future Continuous: If you want to see us, we will be waiting for you there at midday (ожидание в определённое время).

10) I (know) the result in a day.

- **Present Indefinite:** I know the result now.
- **Future Indefinite:** I will know the result in a day (знание наступит в будущем).
- **Future Continuous:** I will be knowing the result in a day (не используется, так как 'know' — состояние).

11) I (not see) him again for a long time.

- **Present Indefinite:** I do not see him often.
- **Future Indefinite:** I will not see him again for a long time (обычное будущее действие).
- **Future Continuous:** I will not be seeing him for a long time (можно использовать для подчёркивания длительности отсутствия контакта).

12) They (have) English from nine to ten in this room tomorrow. Don't let anyone disturb them then.

- **Present Indefinite:** They have English from nine to ten every day.
- **Future Indefinite:** They will have English tomorrow.
- **Future Continuous:** They will be having English from nine to ten tomorrow (длительность действия).

13) "I (call) for her at eight." "No, don't, she still (have) breakfast then."

- **Present Indefinite:** I call for her every morning. / She has breakfast at eight.
- **Future Indefinite:** I will call for her at eight. / She will have breakfast at eight.
- **Future Continuous:** I will be calling for her at eight. / She will still be having breakfast then (длительное действие).

14) My son (be) in the ninth form next year. Your mother (teach) him English.

- **Present Indefinite:** My son is in the ninth form now. / Your mother teaches him English.
- **Future Indefinite:** My son will be in the ninth form next year. / Your mother will teach him English.
- **Future Continuous:** My son will be being in the ninth form next year (неестественно). / Your mother will be teaching him English (длительное действие).

15) "What you (do) at this time next Friday?" "Oh, I (work) as usual."

- **Present Indefinite:** What do you do every Friday? / I work as usual.
- **Future Indefinite:** What will you do at this time next Friday? / I will work as usual.
- **Future Continuous:** What will you be doing at this time next Friday? / I will be working as usual (длительное действие).

16) "What the children (do) when we (get) home?" "I think they (play)."

- **Present Indefinite:** What do the children do when we get home? / They play every day.
- **Future Indefinite:** What will the children do when we get home? / They will play.
- **Future Continuous:** What will the children be doing when we get home? / They will be playing (длительное действие в момент нашего прихода).

17) "You (have) lunch with me on Monday?" "I'd love to, but I (take) my exams then."

- **Present Indefinite:** You have lunch with me on Mondays? / I take my exams every year.
- **Future Indefinite:** Will you have lunch with me on Monday? / I will take my exams then.
- **Future Continuous:** Will you be having lunch with me on Monday? / I will be taking my exams then (длительное действие).

18) I (not remember) when they return.

- **Present Indefinite:** I do not remember when they return.
- **Future Indefinite:** I will not remember when they return.
- **Future Continuous:** I will not be remembering when they return (неестественно, так как 'remember' — состояние).

19) When I (get) home my dog (sit) at the door waiting for me.

- **Present Indefinite:** When I get home, my dog sits at the door waiting for me.
- **Future Indefinite:** When I get home, my dog will sit at the door waiting for me.
- **Future Continuous:** When I get home, my dog will be sitting at the door waiting for me (длительное действие в момент прихода).

Вот так можно преобразовать глаголы в указанные времена.

Давайте разберем каждое из предложений и преобразуем глаголы в скобках в три указанных времени: Present Indefinite, Future Indefinite и Future Continuous.

1) Don't ring her up at 12 o'clock. She is writing her composition then.

• Present Indefinite: writes
• Future Indefinite: will write
• Future Continuous: will be writing

2) At this time tomorrow the boys of our group will be playing football.

• Present Indefinite: play
• Future Indefinite: will play
• Future Continuous: will be playing

3) When we arrive in Moscow, it will probably rain.

• Present Indefinite: rains
• Future Indefinite: will rain
• Future Continuous: will be raining

4) It is nearly autumn, soon the leaves will change colour.

• Present Indefinite: change
• Future Indefinite: will change
• Future Continuous: will be changing

5) I will be in Irkutsk tomorrow morning.

• Present Indefinite: am
• Future Indefinite: will be
• Future Continuous: will be being (но это не употребляется в английском языке)

6) My cousin will be 21 years old next year.

• Present Indefinite: is
• Future Indefinite: will be
• Future Continuous: will be being (не употребляется)

7) "We will come at 5 o'clock." "Good, I will be waiting for you."

• Present Indefinite: come, wait
• Future Indefinite: will come, will wait
• Future Continuous: will be coming, will be waiting

8) At this time next week they will be sitting in the train on their way to Moscow.

• Present Indefinite: sit
• Future Indefinite: will sit
• Future Continuous: will be sitting

9) If you want to see us, come to Tom's on Sunday. We will be waiting for you there at midday.

• Present Indefinite: want, wait
• Future Indefinite: will want, will wait
• Future Continuous: will be wanting, will be waiting

10) I will know the result in a day.

- Present Indefinite: know  
- Future Indefinite: will know  
- Future Continuous: will be knowing (не употребляется)  

11) I will not see him again for a long time.

- Present Indefinite: do not see  
- Future Indefinite: will not see  
- Future Continuous: will not be seeing (не употребляется)  

12) They will have English from nine to ten in this room tomorrow. Don't let anyone disturb them then.

- Present Indefinite: have  
- Future Indefinite: will have  
- Future Continuous: will be having  

13) "I will call for her at eight." "No, don't, she will be having breakfast then."

- Present Indefinite: call, have  
- Future Indefinite: will call, will have  
- Future Continuous: will be calling, will be having  

14) My son will be in the ninth form next year. Your mother will teach him English.

- Present Indefinite: is, teaches  
- Future Indefinite: will be, will teach  
- Future Continuous: will be being (не употребляется), will be teaching  

15) "What will you be doing at this time next Friday?" "Oh, I will be working as usual."

- Present Indefinite: do, work  
- Future Indefinite: will do, will work  
- Future Continuous: will be doing, will be working  

16) What will the children be doing when we get home? "I think they will be playing."

- Present Indefinite: do, get, play  
- Future Indefinite: will do, will get, will play  
- Future Continuous: will be doing, will be getting, will be playing  

17) "Will you have lunch with me on Monday?" "I'd love to, but I'm afraid I will be taking my exams then."

- Present Indefinite: have, take  
- Future Indefinite: will have, will take  
- Future Continuous: will be having, will be taking  

18) I do not remember when they return.

- Present Indefinite: do not remember  
- Future Indefinite: will not remember  
- Future Continuous: will not be remembering (не употребляется)  

19) When I get home my dog will be sitting at the door waiting for me.

- Present Indefinite: get, sit  
- Future Indefinite: will get, will sit  
- Future Continuous: will be getting, will be sitting  

Надеюсь, это поможет вам лучше понять использование различных временных форм!