can understate
Regular verb: understate - understated- understated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can understate
you can understate
he can understate
we can understate
you can understate
they can understate 	I can be understating
you can be understating
he can be understating
we can be understating
you can be understating
they can be understating	I can have understated
you can have understated
he can have understated
we can have understated
you can have understated
they can have understated	I can have been understating
you can have been understating
he can have been understating
we can have been understating
you can have been understating
they can have been understating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't understate
you can't understate
he can't understate
we can't understate
you can't understate
they can't understate 	I can't be understating
you can't be understating
he can't be understating
we can't be understating
you can't be understating
they can't be understating	I can't have understated
you can't have understated
he can't have understated
we can't have understated
you can't have understated
they can't have understated	I can't have been understating
you can't have been understating
he can't have been understating
we can't have been understating
you can't have been understating
they can't have been understating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I understate?
can you understate?
can he understate?
can we understate?
can you understate?
can they understate? 	can I be understating?
can you be understating?
can he be understating?
can we be understating?
can you be understating?
can they be understating? 	can I have understated?
can you have understated?
can he have understated?
can we have understated?
can you have understated?
can they have understated? 	can I have been understating?
can you have been understating?
can he have been understating?
can we have been understating?
can you have been understating?
can they have been understating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I understate?
can't you understate?
can't he understate?
can't we understate?
can't you understate?
can't they understate? 	can't I be understating?
can't you be understating?
can't he be understating?
can't we be understating?
can't you be understating?
can't they be understating? 	can't I have understated?
can't you have understated?
can't he have understated?
can't we have understated?
can't you have understated?
can't they have understated? 	can't I have been understating?
can't you have been understating?
can't he have been understating?
can't we have been understating?
can't you have been understating?
can't they have been understating?