Conjugaison du verbe anglais
CAN CONCENTER

Verbe régulier : concenter - concentered - concentered

Affirmation

Forme simple	Forme en V-ing
I can concenter you can concenter she can concenter we can concenter you can concenter they can concenter	I can be concentering you can be concentering she 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 she 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 she 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 cannot concenter you cannot concenter she cannot concenter we cannot concenter you cannot concenter they cannot concenter	I cannot be concentering you cannot be concentering she cannot be concentering we cannot be concentering you cannot be concentering they cannot be concentering
Perfect	Perfect en V-ing
I cannot have concentered you cannot have concentered she cannot have concentered we cannot have concentered you cannot have concentered they cannot have concentered	I cannot have been concentering you cannot have been concentering she cannot have been concentering we cannot have been concentering you cannot have been concentering they cannot have been concentering

Forme interrogative

Forme simple	Forme en V-ing
can I concenter? can you concenter? can she concenter? can we concenter? can you concenter? can they concenter?	can I be concentering? can you be concentering? can she 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 she 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 she 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 I not concenter? can you not concenter? can she not concenter? can we not concenter? can you not concenter? can they not concenter?	can I not be concentering? can you not be concentering? can she not be concentering? can we not be concentering? can you not be concentering? can they not be concentering?
Perfect	Perfect en V-ing
can I not have concentered? can you not have concentered? can she not have concentered? can we not have concentered? can you not have concentered? can they not have concentered?	can I not have been concentering? can you not have been concentering? can she not have been concentering? can we not have been concentering? can you not have been concentering? can they not have been concentering?