1. l have to go home now. It's very late.
2. 'Do you have to study French?' 'No, we don't'
3 You don't have to shout. I can hear you.
4. 'Does Anna have to get up early?' 'Yes, she does'
5. Mike has to walk to school.
6. Marianne doesn't have to study ICT.
7. 'Do you have to do a lot of homework at the weekend?' 'No, I don't'
8. Sarah and Peter have to come home before midnight. [Обратите внимание, ибо многие путаются - 'Sarah and Peter' - они (they), поэтому 'have to']
ГРАММАТИКАУТВЕРДИТЕЛЬНОЕ ПРЕДЛОЖЕНИЕI, you, we, they/He, she, it +
/
Ставим базовую форму глагола, или данную форму с окончанием -es/-es (если 3-е л. ед. ч.)
ОТРИЦАТЕЛЬНОЕ ПРЕДЛОЖЕНИЕI, you, we, they/He, she, it + don't/doesn't + 
Ставим вс глагол don't/doesn't (doesn't - если 3-е л. ед. ч.) и базовую форму глагола.
ВОПРОСИТЕЛЬНОЕ ПРЕДЛОЖЕНИЕDo/Does + I, you, we, they/He, she, it +
?
Вс глагол do/does (does - если 3-е л. ед. ч.) на начало предложение, дальше - субъект (подлежащее) и базовую форму глагола.
1. Will people have travelled to the moon by 2050? => No, people will not have travelled to the moon by 2050.
2. What will you have done by the end of this year? => I will have been to London by the end of this year.
3. Which new gadgets will have appeared by 2030? => All new gadgets will have been exclusively orange-coloured for safety by 2030.
4. Will books have disappeared by 2050? => No, books will not have disappeared by 2050.
5. Will you have given birth to 3 children by 2022? => No, I will not have given birth to 3 children by 2022.
6. Will you mother have cooked dinner by 5 p.m. today? => Yes, my mother will have coocked dinner by 5 p.m. today.
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