ought to crumple
Regular verb: crumple - crumpled- crumpled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to crumple
you ought to crumple
she ought to crumple
we ought to crumple
you ought to crumple
they ought to crumple 	I ought to be crumpling
you ought to be crumpling
she ought to be crumpling
we ought to be crumpling
you ought to be crumpling
they ought to be crumpling	I ought to have crumpled
you ought to have crumpled
she ought to have crumpled
we ought to have crumpled
you ought to have crumpled
they ought to have crumpled	I ought to have been crumpling
you ought to have been crumpling
she ought to have been crumpling
we ought to have been crumpling
you ought to have been crumpling
they ought to have been crumpling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to crumple
you ought not to crumple
she ought not to crumple
we ought not to crumple
you ought not to crumple
they ought not to crumple 	I ought not to crumpling
you ought not to crumpling
she ought not to crumpling
we ought not to crumpling
you ought not to crumpling
they ought not to crumpling	I ought not to have crumpled
you ought not to have crumpled
she ought not to have crumpled
we ought not to have crumpled
you ought not to have crumpled
they ought not to have crumpled	I ought not to have been crumpling
you ought not to have been crumpling
she ought not to have been crumpling
we ought not to have been crumpling
you ought not to have been crumpling
they ought not to have been crumpling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I crumple?
ought to you crumple?
ought to she crumple?
ought to we crumple?
ought to you crumple?
ought to they crumple? 	ought to I be crumpling?
ought to you be crumpling?
ought to she be crumpling?
ought to we be crumpling?
ought to you be crumpling?
ought to they be crumpling? 	ought to I have crumpled?
ought to you have crumpled?
ought to she have crumpled?
ought to we have crumpled?
ought to you have crumpled?
ought to they have crumpled? 	ought to I have been crumpling?
ought to you have been crumpling?
ought to she have been crumpling?
ought to we have been crumpling?
ought to you have been crumpling?
ought to they have been crumpling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to crumple?
ought you not to crumple?
ought she not to crumple?
ought we not to crumple?
ought you not to crumple?
ought they not to crumple? 	ought I not to be crumpling?
ought you not to be crumpling?
ought she not to be crumpling?
ought we not to be crumpling?
ought you not to be crumpling?
ought they not to be crumpling? 	ought I not to have crumpled?
ought you not to have crumpled?
ought she not to have crumpled?
ought we not to have crumpled?
ought you not to have crumpled?
ought they not to have crumpled? 	ought I not to have been crumpling?
ought you not to have been crumpling?
ought she not to have been crumpling?
ought we not to have been crumpling?
ought you not to have been crumpling?
ought they not to have been crumpling?