can understate
Regular verb: understate - understated- understated

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