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 can't insert you can't insert he can't insert we can't insert you can't insert they can't insert	I can't be inserting you can't be inserting he can't be inserting we can't be inserting you can't be inserting they can't be inserting
Perfect	V-ing perfect
I can't have inserted you can't have inserted he can't have inserted we can't have inserted you can't have inserted they can't have inserted	I can't have been inserting you can't have been inserting he can't have been inserting we can't have been inserting you can't have been inserting they can't 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't I insert? can't you insert? can't he insert? can't we insert? can't you insert? can't they insert?	can't I be inserting? can't you be inserting? can't he be inserting? can't we be inserting? can't you be inserting? can't they be inserting?
Perfect	V-ing perfect
can't I have inserted? can't you have inserted? can't he have inserted? can't we have inserted? can't you have inserted? can't they have inserted?	can't I have been inserting? can't you have been inserting? can't he have been inserting? can't we have been inserting? can't you have been inserting? can't they have been inserting?