Modal auxiliaries im Present Perfect
Wähle die richtige Form im Present Perfect aus.

1 The detective can catch the thief. (Simple Present)
The detective catch the thief. (Present Perfect)
2 The students must do a lot of homework. (Simple Present)
The students do a lot of homework. (Present Perfect)
3 The students may not go into the London Dungeon. (Simple Present)
The students go into the London Dungeloon. (Present Perfect)
4 Lily needn't feed the dog. (Simple Present)
Lily feed the dog. (Present Perfect)
5 Jake may buy that computer game. (Simple Present)
Jake buy that computer game. (Present Perfect)
6 Ben and Lucy can´t do the exercises. (Simple Present)
Ben and Lucy do the exercises. (Present Perfect)
7 The teacher must help them. (Simple Present)
The teacher help them. (Present Perfect)
8 They needn't do detention. (Simple Present)
They do detention. (Present Perfect)
9 Uncle John can't fix the bike. (Simple Present)
Uncle John to fix the bike. (Present Perfect)
10 He may not have a party. (Simple Present)
He have a party. (Present Perfect)