English verb conjugation
CAN INSERT

Regular verb: insert - inserted - inserted

Affirmation

Simple form	V-ing form
I can insert you can insert he can insert we can insert you can insert they can insert	I can be inserting you can be inserting he can be inserting we can be inserting you can be inserting they can be inserting
Perfect	V-ing perfect
I can have inserted you can have inserted he can have inserted we can have inserted you can have inserted they can have inserted	I can have been inserting you can have been inserting he can have been inserting we can have been inserting you can have been inserting they can have been inserting

Negation

Simple form	V-ing form
I cannot insert you cannot insert he cannot insert we cannot insert you cannot insert they cannot insert	I cannot be inserting you cannot be inserting he cannot be inserting we cannot be inserting you cannot be inserting they cannot be inserting
Perfect	V-ing perfect
I cannot have inserted you cannot have inserted he cannot have inserted we cannot have inserted you cannot have inserted they cannot have inserted	I cannot have been inserting you cannot have been inserting he cannot have been inserting we cannot have been inserting you cannot have been inserting they cannot have been inserting

Interrogative form

Simple form	V-ing form
can I insert? can you insert? can he insert? can we insert? can you insert? can they insert?	can I be inserting? can you be inserting? can he be inserting? can we be inserting? can you be inserting? can they be inserting?
Perfect	V-ing perfect
can I have inserted? can you have inserted? can he have inserted? can we have inserted? can you have inserted? can they have inserted?	can I have been inserting? can you have been inserting? can he have been inserting? can we have been inserting? can you have been inserting? can they have been inserting?

Interro-negative form

Simple form	V-ing form
can I not insert? can you not insert? can he not insert? can we not insert? can you not insert? can they not insert?	can I not be inserting? can you not be inserting? can he not be inserting? can we not be inserting? can you not be inserting? can they not be inserting?
Perfect	V-ing perfect
can I not have inserted? can you not have inserted? can he not have inserted? can we not have inserted? can you not have inserted? can they not have inserted?	can I not have been inserting? can you not have been inserting? can he not have been inserting? can we not have been inserting? can you not have been inserting? can they not have been inserting?