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 ought not to calve
you ought not to calve
she ought not to calve
we ought not to calve
you ought not to calve
they ought not to calve 	I ought not to calving
you ought not to calving
she ought not to calving
we ought not to calving
you ought not to calving
they ought not to calving	I ought not to have calved
you ought not to have calved
she ought not to have calved
we ought not to have calved
you ought not to have calved
they ought not to have calved	I ought not to have been calving
you ought not to have been calving
she ought not to have been calving
we ought not to have been calving
you ought not to have been calving
they ought not 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 	
ought I not to calve?
ought you not to calve?
ought she not to calve?
ought we not to calve?
ought you not to calve?
ought they not to calve? 	ought I not to be calving?
ought you not to be calving?
ought she not to be calving?
ought we not to be calving?
ought you not to be calving?
ought they not to be calving? 	ought I not to have calved?
ought you not to have calved?
ought she not to have calved?
ought we not to have calved?
ought you not to have calved?
ought they not to have calved? 	ought I not to have been calving?
ought you not to have been calving?
ought she not to have been calving?
ought we not to have been calving?
ought you not to have been calving?
ought they not to have been calving?