ought to overstudy
Regular verb: overstudy - overstudied- overstudied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to overstudy
you ought to overstudy
she ought to overstudy
we ought to overstudy
you ought to overstudy
they ought to overstudy 	I ought to be overstudying
you ought to be overstudying
she ought to be overstudying
we ought to be overstudying
you ought to be overstudying
they ought to be overstudying	I ought to have overstudied
you ought to have overstudied
she ought to have overstudied
we ought to have overstudied
you ought to have overstudied
they ought to have overstudied	I ought to have been overstudying
you ought to have been overstudying
she ought to have been overstudying
we ought to have been overstudying
you ought to have been overstudying
they ought to have been overstudying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to overstudy
you ought not to overstudy
she ought not to overstudy
we ought not to overstudy
you ought not to overstudy
they ought not to overstudy 	I ought not to overstudying
you ought not to overstudying
she ought not to overstudying
we ought not to overstudying
you ought not to overstudying
they ought not to overstudying	I ought not to have overstudied
you ought not to have overstudied
she ought not to have overstudied
we ought not to have overstudied
you ought not to have overstudied
they ought not to have overstudied	I ought not to have been overstudying
you ought not to have been overstudying
she ought not to have been overstudying
we ought not to have been overstudying
you ought not to have been overstudying
they ought not to have been overstudying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I overstudy?
ought to you overstudy?
ought to she overstudy?
ought to we overstudy?
ought to you overstudy?
ought to they overstudy? 	ought to I be overstudying?
ought to you be overstudying?
ought to she be overstudying?
ought to we be overstudying?
ought to you be overstudying?
ought to they be overstudying? 	ought to I have overstudied?
ought to you have overstudied?
ought to she have overstudied?
ought to we have overstudied?
ought to you have overstudied?
ought to they have overstudied? 	ought to I have been overstudying?
ought to you have been overstudying?
ought to she have been overstudying?
ought to we have been overstudying?
ought to you have been overstudying?
ought to they have been overstudying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to overstudy?
ought you not to overstudy?
ought she not to overstudy?
ought we not to overstudy?
ought you not to overstudy?
ought they not to overstudy? 	ought I not to be overstudying?
ought you not to be overstudying?
ought she not to be overstudying?
ought we not to be overstudying?
ought you not to be overstudying?
ought they not to be overstudying? 	ought I not to have overstudied?
ought you not to have overstudied?
ought she not to have overstudied?
ought we not to have overstudied?
ought you not to have overstudied?
ought they not to have overstudied? 	ought I not to have been overstudying?
ought you not to have been overstudying?
ought she not to have been overstudying?
ought we not to have been overstudying?
ought you not to have been overstudying?
ought they not to have been overstudying?