I can improvise you can improvise he can improvise we can improvise you can improvise they can improvise
Forme en V-ing
I can be improvising you can be improvising he can be improvising we can be improvising you can be improvising they can be improvising
Perfect
I can have improvised you can have improvised he can have improvised we can have improvised you can have improvised they can have improvised
Perfect en V-ing
I can have been improvising you can have been improvising he can have been improvising we can have been improvising you can have been improvising they can have been improvising
Négation
Forme simple
I cannot improvise you cannot improvise he cannot improvise we cannot improvise you cannot improvise they cannot improvise
Forme en V-ing
I cannot be improvising you cannot be improvising he cannot be improvising we cannot be improvising you cannot be improvising they cannot be improvising
Perfect
I cannot have improvised you cannot have improvised he cannot have improvised we cannot have improvised you cannot have improvised they cannot have improvised
Perfect en V-ing
I cannot have been improvising you cannot have been improvising he cannot have been improvising we cannot have been improvising you cannot have been improvising they cannot have been improvising
Forme interrogative
Forme simple
can I improvise? can you improvise? can he improvise? can we improvise? can you improvise? can they improvise?
Forme en V-ing
can I be improvising? can you be improvising? can he be improvising? can we be improvising? can you be improvising? can they be improvising?
Perfect
can I have improvised? can you have improvised? can he have improvised? can we have improvised? can you have improvised? can they have improvised?
Perfect en V-ing
can I have been improvising? can you have been improvising? can he have been improvising? can we have been improvising? can you have been improvising? can they have been improvising?
Forme interro-négative
Forme simple
can I not improvise? can you not improvise? can he not improvise? can we not improvise? can you not improvise? can they not improvise?
Forme en V-ing
can I not be improvising? can you not be improvising? can he not be improvising? can we not be improvising? can you not be improvising? can they not be improvising?
Perfect
can I not have improvised? can you not have improvised? can he not have improvised? can we not have improvised? can you not have improvised? can they not have improvised?
Perfect en V-ing
can I not have been improvising? can you not have been improvising? can he not have been improvising? can we not have been improvising? can you not have been improvising? can they not have been improvising?