Напишите вторую и третью формы следующих глаголов 1. know 2. hide 3. eat 4. drop 5. catch 6. begin 7. break 8. fly 9. forget 10. try 11. wear 12. understand 13. say 14. ring 15. clap

know- knew, known.

hide- hid, hidden.

drop- dropped, dropped.

catch- caught, caught.

begin- began, begun.

break- broke, broken.

fly- flew, flown.

forget- forgot, forgotten.

try- tried, tried.

wear- wore, worn.

understand- understood, understood.

say-said, said.

ring- rang, rung.

clap- clapped , clapped

b: then where have you been? (present perfect)

a: oh, nowhere. i wanted (past simple) to go to america two years ago,but now i don't want to go there.

b: why?

a: i understood (past simple) that my wish is impossible, so i abandoned(past simple) that idea. 

и 2-я

b: have you heard some interesting news? (present perfect)

a: no.

b: i heard (past simple) that brian flunked (past simple) his exam last week. 

a: why did (past simple)he flunk the exam?

b: he lost (past simple)his homework, so he didn't repeat a topic.(past simple)

don't greet. don't wash floor. don't help mum. don't answer phone calls. not вытерай a dust from books. don't do homework.