English verb conjugation
CAN BRACKET

Regular verb: bracket - bracketed - bracketed

Affirmation

Simple form	V-ing form
I can bracket you can bracket he can bracket we can bracket you can bracket they can bracket	I can be bracketing you can be bracketing he can be bracketing we can be bracketing you can be bracketing they can be bracketing
Perfect	V-ing perfect
I can have bracketed you can have bracketed he can have bracketed we can have bracketed you can have bracketed they can have bracketed	I can have been bracketing you can have been bracketing he can have been bracketing we can have been bracketing you can have been bracketing they can have been bracketing

Negation

Simple form	V-ing form
I cannot bracket you cannot bracket he cannot bracket we cannot bracket you cannot bracket they cannot bracket	I cannot be bracketing you cannot be bracketing he cannot be bracketing we cannot be bracketing you cannot be bracketing they cannot be bracketing
Perfect	V-ing perfect
I cannot have bracketed you cannot have bracketed he cannot have bracketed we cannot have bracketed you cannot have bracketed they cannot have bracketed	I cannot have been bracketing you cannot have been bracketing he cannot have been bracketing we cannot have been bracketing you cannot have been bracketing they cannot have been bracketing

Interrogative form

Simple form	V-ing form
can I bracket? can you bracket? can he bracket? can we bracket? can you bracket? can they bracket?	can I be bracketing? can you be bracketing? can he be bracketing? can we be bracketing? can you be bracketing? can they be bracketing?
Perfect	V-ing perfect
can I have bracketed? can you have bracketed? can he have bracketed? can we have bracketed? can you have bracketed? can they have bracketed?	can I have been bracketing? can you have been bracketing? can he have been bracketing? can we have been bracketing? can you have been bracketing? can they have been bracketing?

Interro-negative form

Simple form	V-ing form
can I not bracket? can you not bracket? can he not bracket? can we not bracket? can you not bracket? can they not bracket?	can I not be bracketing? can you not be bracketing? can he not be bracketing? can we not be bracketing? can you not be bracketing? can they not be bracketing?
Perfect	V-ing perfect
can I not have bracketed? can you not have bracketed? can he not have bracketed? can we not have bracketed? can you not have bracketed? can they not have bracketed?	can I not have been bracketing? can you not have been bracketing? can he not have been bracketing? can we not have been bracketing? can you not have been bracketing? can they not have been bracketing?