can stagger
Regular verb: stagger - staggered- staggered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can stagger
you can stagger
he can stagger
we can stagger
you can stagger
they can stagger 	I can be staggering
you can be staggering
he can be staggering
we can be staggering
you can be staggering
they can be staggering	I can have staggered
you can have staggered
he can have staggered
we can have staggered
you can have staggered
they can have staggered	I can have been staggering
you can have been staggering
he can have been staggering
we can have been staggering
you can have been staggering
they can have been staggering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't stagger
you can't stagger
he can't stagger
we can't stagger
you can't stagger
they can't stagger 	I can't be staggering
you can't be staggering
he can't be staggering
we can't be staggering
you can't be staggering
they can't be staggering	I can't have staggered
you can't have staggered
he can't have staggered
we can't have staggered
you can't have staggered
they can't have staggered	I can't have been staggering
you can't have been staggering
he can't have been staggering
we can't have been staggering
you can't have been staggering
they can't have been staggering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I stagger?
can you stagger?
can he stagger?
can we stagger?
can you stagger?
can they stagger? 	can I be staggering?
can you be staggering?
can he be staggering?
can we be staggering?
can you be staggering?
can they be staggering? 	can I have staggered?
can you have staggered?
can he have staggered?
can we have staggered?
can you have staggered?
can they have staggered? 	can I have been staggering?
can you have been staggering?
can he have been staggering?
can we have been staggering?
can you have been staggering?
can they have been staggering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I stagger?
can't you stagger?
can't he stagger?
can't we stagger?
can't you stagger?
can't they stagger? 	can't I be staggering?
can't you be staggering?
can't he be staggering?
can't we be staggering?
can't you be staggering?
can't they be staggering? 	can't I have staggered?
can't you have staggered?
can't he have staggered?
can't we have staggered?
can't you have staggered?
can't they have staggered? 	can't I have been staggering?
can't you have been staggering?
can't he have been staggering?
can't we have been staggering?
can't you have been staggering?
can't they have been staggering?