ought to persist
Regular verb: persist - persisted- persisted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to persist
you ought to persist
she ought to persist
we ought to persist
you ought to persist
they ought to persist 	I ought to be persisting
you ought to be persisting
she ought to be persisting
we ought to be persisting
you ought to be persisting
they ought to be persisting	I ought to have persisted
you ought to have persisted
she ought to have persisted
we ought to have persisted
you ought to have persisted
they ought to have persisted	I ought to have been persisting
you ought to have been persisting
she ought to have been persisting
we ought to have been persisting
you ought to have been persisting
they ought to have been persisting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to persist
you ought not to persist
she ought not to persist
we ought not to persist
you ought not to persist
they ought not to persist 	I ought not to persisting
you ought not to persisting
she ought not to persisting
we ought not to persisting
you ought not to persisting
they ought not to persisting	I ought not to have persisted
you ought not to have persisted
she ought not to have persisted
we ought not to have persisted
you ought not to have persisted
they ought not to have persisted	I ought not to have been persisting
you ought not to have been persisting
she ought not to have been persisting
we ought not to have been persisting
you ought not to have been persisting
they ought not to have been persisting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I persist?
ought to you persist?
ought to she persist?
ought to we persist?
ought to you persist?
ought to they persist? 	ought to I be persisting?
ought to you be persisting?
ought to she be persisting?
ought to we be persisting?
ought to you be persisting?
ought to they be persisting? 	ought to I have persisted?
ought to you have persisted?
ought to she have persisted?
ought to we have persisted?
ought to you have persisted?
ought to they have persisted? 	ought to I have been persisting?
ought to you have been persisting?
ought to she have been persisting?
ought to we have been persisting?
ought to you have been persisting?
ought to they have been persisting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to persist?
ought you not to persist?
ought she not to persist?
ought we not to persist?
ought you not to persist?
ought they not to persist? 	ought I not to be persisting?
ought you not to be persisting?
ought she not to be persisting?
ought we not to be persisting?
ought you not to be persisting?
ought they not to be persisting? 	ought I not to have persisted?
ought you not to have persisted?
ought she not to have persisted?
ought we not to have persisted?
ought you not to have persisted?
ought they not to have persisted? 	ought I not to have been persisting?
ought you not to have been persisting?
ought she not to have been persisting?
ought we not to have been persisting?
ought you not to have been persisting?
ought they not to have been persisting?