English verb conjugation
CAN BILLET

Regular verb: billet - billeted - billeted

Affirmation

Simple form	V-ing form
I can billet you can billet she can billet we can billet you can billet they can billet	I can be billeting you can be billeting she can be billeting we can be billeting you can be billeting they can be billeting
Perfect	V-ing perfect
I can have billeted you can have billeted she can have billeted we can have billeted you can have billeted they can have billeted	I can have been billeting you can have been billeting she can have been billeting we can have been billeting you can have been billeting they can have been billeting

Negation

Simple form	V-ing form
I cannot billet you cannot billet she cannot billet we cannot billet you cannot billet they cannot billet	I cannot be billeting you cannot be billeting she cannot be billeting we cannot be billeting you cannot be billeting they cannot be billeting
Perfect	V-ing perfect
I cannot have billeted you cannot have billeted she cannot have billeted we cannot have billeted you cannot have billeted they cannot have billeted	I cannot have been billeting you cannot have been billeting she cannot have been billeting we cannot have been billeting you cannot have been billeting they cannot have been billeting

Interrogative form

Simple form	V-ing form
can I billet? can you billet? can she billet? can we billet? can you billet? can they billet?	can I be billeting? can you be billeting? can she be billeting? can we be billeting? can you be billeting? can they be billeting?
Perfect	V-ing perfect
can I have billeted? can you have billeted? can she have billeted? can we have billeted? can you have billeted? can they have billeted?	can I have been billeting? can you have been billeting? can she have been billeting? can we have been billeting? can you have been billeting? can they have been billeting?

Interro-negative form

Simple form	V-ing form
can I not billet? can you not billet? can she not billet? can we not billet? can you not billet? can they not billet?	can I not be billeting? can you not be billeting? can she not be billeting? can we not be billeting? can you not be billeting? can they not be billeting?
Perfect	V-ing perfect
can I not have billeted? can you not have billeted? can she not have billeted? can we not have billeted? can you not have billeted? can they not have billeted?	can I not have been billeting? can you not have been billeting? can she not have been billeting? can we not have been billeting? can you not have been billeting? can they not have been billeting?