I can filter you can filter she can filter we can filter you can filter they can filter
Forme en V-ing
I can be filtering you can be filtering she can be filtering we can be filtering you can be filtering they can be filtering
Perfect
I can have filtered you can have filtered she can have filtered we can have filtered you can have filtered they can have filtered
Perfect en V-ing
I can have been filtering you can have been filtering she can have been filtering we can have been filtering you can have been filtering they can have been filtering
Négation
Forme simple
I cannot filter you cannot filter she cannot filter we cannot filter you cannot filter they cannot filter
Forme en V-ing
I cannot be filtering you cannot be filtering she cannot be filtering we cannot be filtering you cannot be filtering they cannot be filtering
Perfect
I cannot have filtered you cannot have filtered she cannot have filtered we cannot have filtered you cannot have filtered they cannot have filtered
Perfect en V-ing
I cannot have been filtering you cannot have been filtering she cannot have been filtering we cannot have been filtering you cannot have been filtering they cannot have been filtering
Forme interrogative
Forme simple
can I filter? can you filter? can she filter? can we filter? can you filter? can they filter?
Forme en V-ing
can I be filtering? can you be filtering? can she be filtering? can we be filtering? can you be filtering? can they be filtering?
Perfect
can I have filtered? can you have filtered? can she have filtered? can we have filtered? can you have filtered? can they have filtered?
Perfect en V-ing
can I have been filtering? can you have been filtering? can she have been filtering? can we have been filtering? can you have been filtering? can they have been filtering?
Forme interro-négative
Forme simple
can I not filter? can you not filter? can she not filter? can we not filter? can you not filter? can they not filter?
Forme en V-ing
can I not be filtering? can you not be filtering? can she not be filtering? can we not be filtering? can you not be filtering? can they not be filtering?
Perfect
can I not have filtered? can you not have filtered? can she not have filtered? can we not have filtered? can you not have filtered? can they not have filtered?
Perfect en V-ing
can I not have been filtering? can you not have been filtering? can she not have been filtering? can we not have been filtering? can you not have been filtering? can they not have been filtering?