English verb conjugation
CAN MUSTER

Regular verb: muster - mustered - mustered

Affirmation

Simple form	V-ing form
I can muster you can muster he can muster we can muster you can muster they can muster	I can be mustering you can be mustering he can be mustering we can be mustering you can be mustering they can be mustering
Perfect	V-ing perfect
I can have mustered you can have mustered he can have mustered we can have mustered you can have mustered they can have mustered	I can have been mustering you can have been mustering he can have been mustering we can have been mustering you can have been mustering they can have been mustering

Negation

Simple form	V-ing form
I cannot muster you cannot muster he cannot muster we cannot muster you cannot muster they cannot muster	I cannot be mustering you cannot be mustering he cannot be mustering we cannot be mustering you cannot be mustering they cannot be mustering
Perfect	V-ing perfect
I cannot have mustered you cannot have mustered he cannot have mustered we cannot have mustered you cannot have mustered they cannot have mustered	I cannot have been mustering you cannot have been mustering he cannot have been mustering we cannot have been mustering you cannot have been mustering they cannot have been mustering

Interrogative form

Simple form	V-ing form
can I muster? can you muster? can he muster? can we muster? can you muster? can they muster?	can I be mustering? can you be mustering? can he be mustering? can we be mustering? can you be mustering? can they be mustering?
Perfect	V-ing perfect
can I have mustered? can you have mustered? can he have mustered? can we have mustered? can you have mustered? can they have mustered?	can I have been mustering? can you have been mustering? can he have been mustering? can we have been mustering? can you have been mustering? can they have been mustering?

Interro-negative form

Simple form	V-ing form
can I not muster? can you not muster? can he not muster? can we not muster? can you not muster? can they not muster?	can I not be mustering? can you not be mustering? can he not be mustering? can we not be mustering? can you not be mustering? can they not be mustering?
Perfect	V-ing perfect
can I not have mustered? can you not have mustered? can he not have mustered? can we not have mustered? can you not have mustered? can they not have mustered?	can I not have been mustering? can you not have been mustering? can he not have been mustering? can we not have been mustering? can you not have been mustering? can they not have been mustering?