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
she 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
she 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
she 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
she 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
she 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
she 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
she 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
she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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 she 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?