ought to calve
Regular verb: calve - calved- calved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to calve
you ought to calve
he ought to calve
we ought to calve
you ought to calve
they ought to calve 	I ought to be calving
you ought to be calving
he ought to be calving
we ought to be calving
you ought to be calving
they ought to be calving	I ought to have calved
you ought to have calved
he ought to have calved
we ought to have calved
you ought to have calved
they ought to have calved	I ought to have been calving
you ought to have been calving
he ought to have been calving
we ought to have been calving
you ought to have been calving
they ought to have been calving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to calve
you oughtn't to calve
he oughtn't to calve
we oughtn't to calve
you oughtn't to calve
they oughtn't to calve 	I oughtn't to be calving
you oughtn't to be calving
he oughtn't to be calving
we oughtn't to be calving
you oughtn't to be calving
they oughtn't to be calving	I oughtn't to have calved
you oughtn't to have calved
he oughtn't to have calved
we oughtn't to have calved
you oughtn't to have calved
they oughtn't to have calved	I oughtn't to have been calving
you oughtn't to have been calving
he oughtn't to have been calving
we oughtn't to have been calving
you oughtn't to have been calving
they oughtn't to have been calving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I calve?
ought to you calve?
ought to he calve?
ought to we calve?
ought to you calve?
ought to they calve? 	ought to I be calving?
ought to you be calving?
ought to he be calving?
ought to we be calving?
ought to you be calving?
ought to they be calving? 	ought to I have calved?
ought to you have calved?
ought to he have calved?
ought to we have calved?
ought to you have calved?
ought to they have calved? 	ought to I have been calving?
ought to you have been calving?
ought to he have been calving?
ought to we have been calving?
ought to you have been calving?
ought to they have been calving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to calve?
oughtn't you to calve?
oughtn't he to calve?
oughtn't we to calve?
oughtn't you to calve?
oughtn't they to calve? 	oughtn't I to be calving?
oughtn't you to be calving?
oughtn't he to be calving?
oughtn't we to be calving?
oughtn't you to be calving?
oughtn't they to be calving? 	oughtn't I to have calved?
oughtn't you to have calved?
oughtn't he to have calved?
oughtn't we to have calved?
oughtn't you to have calved?
oughtn't they to have calved? 	oughtn't I to have been calving?
oughtn't you to have been calving?
oughtn't he to have been calving?
oughtn't we to have been calving?
oughtn't you to have been calving?
oughtn't they to have been calving?