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
he 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
he 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
he 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
he 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 oughtn't to crumple
you oughtn't to crumple
he oughtn't to crumple
we oughtn't to crumple
you oughtn't to crumple
they oughtn't to crumple 	I oughtn't to be crumpling
you oughtn't to be crumpling
he oughtn't to be crumpling
we oughtn't to be crumpling
you oughtn't to be crumpling
they oughtn't to be crumpling	I oughtn't to have crumpled
you oughtn't to have crumpled
he oughtn't to have crumpled
we oughtn't to have crumpled
you oughtn't to have crumpled
they oughtn't to have crumpled	I oughtn't to have been crumpling
you oughtn't to have been crumpling
he oughtn't to have been crumpling
we oughtn't to have been crumpling
you oughtn't to have been crumpling
they oughtn't 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 he 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 he 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 he 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 he 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 	
oughtn't I to crumple?
oughtn't you to crumple?
oughtn't he to crumple?
oughtn't we to crumple?
oughtn't you to crumple?
oughtn't they to crumple? 	oughtn't I to be crumpling?
oughtn't you to be crumpling?
oughtn't he to be crumpling?
oughtn't we to be crumpling?
oughtn't you to be crumpling?
oughtn't they to be crumpling? 	oughtn't I to have crumpled?
oughtn't you to have crumpled?
oughtn't he to have crumpled?
oughtn't we to have crumpled?
oughtn't you to have crumpled?
oughtn't they to have crumpled? 	oughtn't I to have been crumpling?
oughtn't you to have been crumpling?
oughtn't he to have been crumpling?
oughtn't we to have been crumpling?
oughtn't you to have been crumpling?
oughtn't they to have been crumpling?