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 can't muster you can't muster he can't muster we can't muster you can't muster they can't muster	I can't be mustering you can't be mustering he can't be mustering we can't be mustering you can't be mustering they can't be mustering
Perfect	V-ing perfect
I can't have mustered you can't have mustered he can't have mustered we can't have mustered you can't have mustered they can't have mustered	I can't have been mustering you can't have been mustering he can't have been mustering we can't have been mustering you can't have been mustering they can't 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't I muster? can't you muster? can't he muster? can't we muster? can't you muster? can't they muster?	can't I be mustering? can't you be mustering? can't he be mustering? can't we be mustering? can't you be mustering? can't they be mustering?
Perfect	V-ing perfect
can't I have mustered? can't you have mustered? can't he have mustered? can't we have mustered? can't you have mustered? can't they have mustered?	can't I have been mustering? can't you have been mustering? can't he have been mustering? can't we have been mustering? can't you have been mustering? can't they have been mustering?