can persist
Verbo regular: persist - persisted- persisted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can persist
you can persist
he can persist
we can persist
you can persist
they can persist 	I can be persisting
you can be persisting
he can be persisting
we can be persisting
you can be persisting
they can be persisting	I can have persisted
you can have persisted
he can have persisted
we can have persisted
you can have persisted
they can have persisted	I can have been persisting
you can have been persisting
he can have been persisting
we can have been persisting
you can have been persisting
they can have been persisting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't persist
you can't persist
he can't persist
we can't persist
you can't persist
they can't persist 	I can't be persisting
you can't be persisting
he can't be persisting
we can't be persisting
you can't be persisting
they can't be persisting	I can't have persisted
you can't have persisted
he can't have persisted
we can't have persisted
you can't have persisted
they can't have persisted	I can't have been persisting
you can't have been persisting
he can't have been persisting
we can't have been persisting
you can't have been persisting
they can't have been persisting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I persist?
can you persist?
can he persist?
can we persist?
can you persist?
can they persist? 	can I be persisting?
can you be persisting?
can he be persisting?
can we be persisting?
can you be persisting?
can they be persisting? 	can I have persisted?
can you have persisted?
can he have persisted?
can we have persisted?
can you have persisted?
can they have persisted? 	can I have been persisting?
can you have been persisting?
can he have been persisting?
can we have been persisting?
can you have been persisting?
can they have been persisting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I persist?
can't you persist?
can't he persist?
can't we persist?
can't you persist?
can't they persist? 	can't I be persisting?
can't you be persisting?
can't he be persisting?
can't we be persisting?
can't you be persisting?
can't they be persisting? 	can't I have persisted?
can't you have persisted?
can't he have persisted?
can't we have persisted?
can't you have persisted?
can't they have persisted? 	can't I have been persisting?
can't you have been persisting?
can't he have been persisting?
can't we have been persisting?
can't you have been persisting?
can't they have been persisting?