I can bugle you can bugle he can bugle we can bugle you can bugle they can bugle
V-ing form
I can be bugling you can be bugling he can be bugling we can be bugling you can be bugling they can be bugling
Perfect
I can have bugled you can have bugled he can have bugled we can have bugled you can have bugled they can have bugled
V-ing perfect
I can have been bugling you can have been bugling he can have been bugling we can have been bugling you can have been bugling they can have been bugling
Negation
Simple form
I cannot bugle you cannot bugle he cannot bugle we cannot bugle you cannot bugle they cannot bugle
V-ing form
I cannot be bugling you cannot be bugling he cannot be bugling we cannot be bugling you cannot be bugling they cannot be bugling
Perfect
I cannot have bugled you cannot have bugled he cannot have bugled we cannot have bugled you cannot have bugled they cannot have bugled
V-ing perfect
I cannot have been bugling you cannot have been bugling he cannot have been bugling we cannot have been bugling you cannot have been bugling they cannot have been bugling
Interrogative form
Simple form
can I bugle? can you bugle? can he bugle? can we bugle? can you bugle? can they bugle?
V-ing form
can I be bugling? can you be bugling? can he be bugling? can we be bugling? can you be bugling? can they be bugling?
Perfect
can I have bugled? can you have bugled? can he have bugled? can we have bugled? can you have bugled? can they have bugled?
V-ing perfect
can I have been bugling? can you have been bugling? can he have been bugling? can we have been bugling? can you have been bugling? can they have been bugling?
Interro-negative form
Simple form
can I not bugle? can you not bugle? can he not bugle? can we not bugle? can you not bugle? can they not bugle?
V-ing form
can I not be bugling? can you not be bugling? can he not be bugling? can we not be bugling? can you not be bugling? can they not be bugling?
Perfect
can I not have bugled? can you not have bugled? can he not have bugled? can we not have bugled? can you not have bugled? can they not have bugled?
V-ing perfect
can I not have been bugling? can you not have been bugling? can he not have been bugling? can we not have been bugling? can you not have been bugling? can they not have been bugling?