I can tamper you can tamper he can tamper we can tamper you can tamper they can tamper
Forme en V-ing
I can be tampering you can be tampering he can be tampering we can be tampering you can be tampering they can be tampering
Perfect
I can have tampered you can have tampered he can have tampered we can have tampered you can have tampered they can have tampered
Perfect en V-ing
I can have been tampering you can have been tampering he can have been tampering we can have been tampering you can have been tampering they can have been tampering
Négation
Forme simple
I can't tamper you can't tamper he can't tamper we can't tamper you can't tamper they can't tamper
Forme en V-ing
I can't be tampering you can't be tampering he can't be tampering we can't be tampering you can't be tampering they can't be tampering
Perfect
I can't have tampered you can't have tampered he can't have tampered we can't have tampered you can't have tampered they can't have tampered
Perfect en V-ing
I can't have been tampering you can't have been tampering he can't have been tampering we can't have been tampering you can't have been tampering they can't have been tampering
Forme interrogative
Forme simple
can I tamper? can you tamper? can he tamper? can we tamper? can you tamper? can they tamper?
Forme en V-ing
can I be tampering? can you be tampering? can he be tampering? can we be tampering? can you be tampering? can they be tampering?
Perfect
can I have tampered? can you have tampered? can he have tampered? can we have tampered? can you have tampered? can they have tampered?
Perfect en V-ing
can I have been tampering? can you have been tampering? can he have been tampering? can we have been tampering? can you have been tampering? can they have been tampering?
Forme interro-négative
Forme simple
can't I tamper? can't you tamper? can't he tamper? can't we tamper? can't you tamper? can't they tamper?
Forme en V-ing
can't I be tampering? can't you be tampering? can't he be tampering? can't we be tampering? can't you be tampering? can't they be tampering?
Perfect
can't I have tampered? can't you have tampered? can't he have tampered? can't we have tampered? can't you have tampered? can't they have tampered?
Perfect en V-ing
can't I have been tampering? can't you have been tampering? can't he have been tampering? can't we have been tampering? can't you have been tampering? can't they have been tampering?