Conjugaison du verbe anglais
CAN CONCENTER

Verbe régulier : concenter - concentered - concentered

Affirmation

Forme simple	Forme en V-ing
I can concenter you can concenter he can concenter we can concenter you can concenter they can concenter	I can be concentering you can be concentering he can be concentering we can be concentering you can be concentering they can be concentering
Perfect	Perfect en V-ing
I can have concentered you can have concentered he can have concentered we can have concentered you can have concentered they can have concentered	I can have been concentering you can have been concentering he can have been concentering we can have been concentering you can have been concentering they can have been concentering

Négation

Forme simple	Forme en V-ing
I can't concenter you can't concenter he can't concenter we can't concenter you can't concenter they can't concenter	I can't be concentering you can't be concentering he can't be concentering we can't be concentering you can't be concentering they can't be concentering
Perfect	Perfect en V-ing
I can't have concentered you can't have concentered he can't have concentered we can't have concentered you can't have concentered they can't have concentered	I can't have been concentering you can't have been concentering he can't have been concentering we can't have been concentering you can't have been concentering they can't have been concentering

Forme interrogative

Forme simple	Forme en V-ing
can I concenter? can you concenter? can he concenter? can we concenter? can you concenter? can they concenter?	can I be concentering? can you be concentering? can he be concentering? can we be concentering? can you be concentering? can they be concentering?
Perfect	Perfect en V-ing
can I have concentered? can you have concentered? can he have concentered? can we have concentered? can you have concentered? can they have concentered?	can I have been concentering? can you have been concentering? can he have been concentering? can we have been concentering? can you have been concentering? can they have been concentering?

Forme interro-négative

Forme simple	Forme en V-ing
can't I concenter? can't you concenter? can't he concenter? can't we concenter? can't you concenter? can't they concenter?	can't I be concentering? can't you be concentering? can't he be concentering? can't we be concentering? can't you be concentering? can't they be concentering?
Perfect	Perfect en V-ing
can't I have concentered? can't you have concentered? can't he have concentered? can't we have concentered? can't you have concentered? can't they have concentered?	can't I have been concentering? can't you have been concentering? can't he have been concentering? can't we have been concentering? can't you have been concentering? can't they have been concentering?