can perseverate
Regular verb: perseverate - perseverated- perseverated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can perseverate
you can perseverate
she can perseverate
we can perseverate
you can perseverate
they can perseverate 	I can be perseverating
you can be perseverating
she can be perseverating
we can be perseverating
you can be perseverating
they can be perseverating	I can have perseverated
you can have perseverated
she can have perseverated
we can have perseverated
you can have perseverated
they can have perseverated	I can have been perseverating
you can have been perseverating
she can have been perseverating
we can have been perseverating
you can have been perseverating
they can have been perseverating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't perseverate
you can't perseverate
she can't perseverate
we can't perseverate
you can't perseverate
they can't perseverate 	I can't be perseverating
you can't be perseverating
she can't be perseverating
we can't be perseverating
you can't be perseverating
they can't be perseverating	I can't have perseverated
you can't have perseverated
she can't have perseverated
we can't have perseverated
you can't have perseverated
they can't have perseverated	I can't have been perseverating
you can't have been perseverating
she can't have been perseverating
we can't have been perseverating
you can't have been perseverating
they can't have been perseverating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I perseverate?
can you perseverate?
can she perseverate?
can we perseverate?
can you perseverate?
can they perseverate? 	can I be perseverating?
can you be perseverating?
can she be perseverating?
can we be perseverating?
can you be perseverating?
can they be perseverating? 	can I have perseverated?
can you have perseverated?
can she have perseverated?
can we have perseverated?
can you have perseverated?
can they have perseverated? 	can I have been perseverating?
can you have been perseverating?
can she have been perseverating?
can we have been perseverating?
can you have been perseverating?
can they have been perseverating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I perseverate?
can't you perseverate?
can't she perseverate?
can't we perseverate?
can't you perseverate?
can't they perseverate? 	can't I be perseverating?
can't you be perseverating?
can't she be perseverating?
can't we be perseverating?
can't you be perseverating?
can't they be perseverating? 	can't I have perseverated?
can't you have perseverated?
can't she have perseverated?
can't we have perseverated?
can't you have perseverated?
can't they have perseverated? 	can't I have been perseverating?
can't you have been perseverating?
can't she have been perseverating?
can't we have been perseverating?
can't you have been perseverating?
can't they have been perseverating?