English verb conjugation
CAN PERSIST

Regular verb: persist - persisted - persisted

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?