I can insert you can insert he can insert we can insert you can insert they can insert
V-ing form
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
I can have inserted you can have inserted he can have inserted we can have inserted you can have inserted they can have inserted
V-ing perfect
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
I cannot insert you cannot insert he cannot insert we cannot insert you cannot insert they cannot insert
V-ing form
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
I cannot have inserted you cannot have inserted he cannot have inserted we cannot have inserted you cannot have inserted they cannot have inserted
V-ing perfect
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
can I insert? can you insert? can he insert? can we insert? can you insert? can they insert?
V-ing form
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
can I have inserted? can you have inserted? can he have inserted? can we have inserted? can you have inserted? can they have inserted?
V-ing perfect
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
can I not insert? can you not insert? can he not insert? can we not insert? can you not insert? can they not insert?
V-ing form
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
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?
V-ing perfect
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?