я не могу понять различие past simple и present perfect очень вас (((

1) I have never been.

2) was

3) did you spend

4) didn't spend

5) we have already bought.

6) Did you see

7) has seen

8) Have you ever showed

9) have never showed

10) showed

11) have took

12) didn't take

13) had

14) have gone

15) did he go

16) left

17) did you invite

18) i have never invited.

19) won

20) have never won

21) did happen

22) has fallen down

23) broke

24) Have you ever gone

25) went

26) has already writen

27) didn't write

28) Did they Catch

29) have found

30) lost

31) found

Надеюсь :)

Буду рад, если вы отметите ответ лучшим :=)