ought to lactate
Regular verb: lactate - lactated- lactated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to lactate
you ought to lactate
he ought to lactate
we ought to lactate
you ought to lactate
they ought to lactate 	I ought to be lactating
you ought to be lactating
he ought to be lactating
we ought to be lactating
you ought to be lactating
they ought to be lactating	I ought to have lactated
you ought to have lactated
he ought to have lactated
we ought to have lactated
you ought to have lactated
they ought to have lactated	I ought to have been lactating
you ought to have been lactating
he ought to have been lactating
we ought to have been lactating
you ought to have been lactating
they ought to have been lactating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to lactate
you ought not to lactate
he ought not to lactate
we ought not to lactate
you ought not to lactate
they ought not to lactate 	I ought not to lactating
you ought not to lactating
he ought not to lactating
we ought not to lactating
you ought not to lactating
they ought not to lactating	I ought not to have lactated
you ought not to have lactated
he ought not to have lactated
we ought not to have lactated
you ought not to have lactated
they ought not to have lactated	I ought not to have been lactating
you ought not to have been lactating
he ought not to have been lactating
we ought not to have been lactating
you ought not to have been lactating
they ought not to have been lactating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I lactate?
ought to you lactate?
ought to he lactate?
ought to we lactate?
ought to you lactate?
ought to they lactate? 	ought to I be lactating?
ought to you be lactating?
ought to he be lactating?
ought to we be lactating?
ought to you be lactating?
ought to they be lactating? 	ought to I have lactated?
ought to you have lactated?
ought to he have lactated?
ought to we have lactated?
ought to you have lactated?
ought to they have lactated? 	ought to I have been lactating?
ought to you have been lactating?
ought to he have been lactating?
ought to we have been lactating?
ought to you have been lactating?
ought to they have been lactating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to lactate?
ought you not to lactate?
ought he not to lactate?
ought we not to lactate?
ought you not to lactate?
ought they not to lactate? 	ought I not to be lactating?
ought you not to be lactating?
ought he not to be lactating?
ought we not to be lactating?
ought you not to be lactating?
ought they not to be lactating? 	ought I not to have lactated?
ought you not to have lactated?
ought he not to have lactated?
ought we not to have lactated?
ought you not to have lactated?
ought they not to have lactated? 	ought I not to have been lactating?
ought you not to have been lactating?
ought he not to have been lactating?
ought we not to have been lactating?
ought you not to have been lactating?
ought they not to have been lactating?