Привет! Давай разберёмся с упражнениями вместе.
1. to come
a) Aibek comes to the room every day.
b) Aibek doesn’t come to football practice on Fridays.
c) Aibek came to the room yesterday.
d) Aibek might have come to class if he wasn’t ill.
2. to decide
a) We decide which road to take every day.
b) We decided which road to take yesterday.
c) We didn't decide which road to take. You did.
d) We might have decided to help him yesterday if he had asked for help.
3. to be
a) They are tired after work every day.
b) They were tired after work yesterday.
c) They weren’t tired after playing volleyball all day yesterday.
d) They might have been tired if they stayed up late watching movies.
4. not/to swim
a) Polly swims in the pool every day.
b) Polly doesn’t swim in the pool on Wednesdays?
c) Polly swam in the pool yesterday.
d) She might not have swum in the lake if it was too cold.
Надеюсь, это поможет! Если есть вопросы, дай знать.