English verb conjugation
CAN SEE

Irregular verb: see - saw - seen

Affirmation

Simple form	V-ing form
I can see you can see he can see we can see you can see they can see	I can be seeing you can be seeing he can be seeing we can be seeing you can be seeing they can be seeing
Perfect	V-ing perfect
I can have seen you can have seen he can have seen we can have seen you can have seen they can have seen	I can have been seeing you can have been seeing he can have been seeing we can have been seeing you can have been seeing they can have been seeing

Negation

Simple form	V-ing form
I cannot see you cannot see he cannot see we cannot see you cannot see they cannot see	I cannot be seeing you cannot be seeing he cannot be seeing we cannot be seeing you cannot be seeing they cannot be seeing
Perfect	V-ing perfect
I cannot have seen you cannot have seen he cannot have seen we cannot have seen you cannot have seen they cannot have seen	I cannot have been seeing you cannot have been seeing he cannot have been seeing we cannot have been seeing you cannot have been seeing they cannot have been seeing

Interrogative form

Simple form	V-ing form
can I see? can you see? can he see? can we see? can you see? can they see?	can I be seeing? can you be seeing? can he be seeing? can we be seeing? can you be seeing? can they be seeing?
Perfect	V-ing perfect
can I have seen? can you have seen? can he have seen? can we have seen? can you have seen? can they have seen?	can I have been seeing? can you have been seeing? can he have been seeing? can we have been seeing? can you have been seeing? can they have been seeing?

Interro-negative form

Simple form	V-ing form
can I not see? can you not see? can he not see? can we not see? can you not see? can they not see?	can I not be seeing? can you not be seeing? can he not be seeing? can we not be seeing? can you not be seeing? can they not be seeing?
Perfect	V-ing perfect
can I not have seen? can you not have seen? can he not have seen? can we not have seen? can you not have seen? can they not have seen?	can I not have been seeing? can you not have been seeing? can he not have been seeing? can we not have been seeing? can you not have been seeing? can they not have been seeing?