I ought to lactate you ought to lactate she ought to lactate we ought to lactate you ought to lactate they ought to lactate
V-ing form
I ought to be lactating you ought to be lactating she ought to be lactating we ought to be lactating you ought to be lactating they ought to be lactating
Perfect
I ought to have lactated you ought to have lactated she ought to have lactated we ought to have lactated you ought to have lactated they ought to have lactated
V-ing perfect
I ought to have been lactating you ought to have been lactating she 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
I oughtn't to lactate you oughtn't to lactate she oughtn't to lactate we oughtn't to lactate you oughtn't to lactate they oughtn't to lactate
V-ing form
I oughtn't to be lactating you oughtn't to be lactating she oughtn't to be lactating we oughtn't to be lactating you oughtn't to be lactating they oughtn't to be lactating
Perfect
I oughtn't to have lactated you oughtn't to have lactated she oughtn't to have lactated we oughtn't to have lactated you oughtn't to have lactated they oughtn't to have lactated
V-ing perfect
I oughtn't to have been lactating you oughtn't to have been lactating she oughtn't to have been lactating we oughtn't to have been lactating you oughtn't to have been lactating they oughtn't to have been lactating
Interrogative form
Simple form
ought to I lactate? ought to you lactate? ought to she lactate? ought to we lactate? ought to you lactate? ought to they lactate?
V-ing form
ought to I be lactating? ought to you be lactating? ought to she be lactating? ought to we be lactating? ought to you be lactating? ought to they be lactating?
Perfect
ought to I have lactated? ought to you have lactated? ought to she have lactated? ought to we have lactated? ought to you have lactated? ought to they have lactated?
V-ing perfect
ought to I have been lactating? ought to you have been lactating? ought to she 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
oughtn't I to lactate? oughtn't you to lactate? oughtn't she to lactate? oughtn't we to lactate? oughtn't you to lactate? oughtn't they to lactate?
V-ing form
oughtn't I to be lactating? oughtn't you to be lactating? oughtn't she to be lactating? oughtn't we to be lactating? oughtn't you to be lactating? oughtn't they to be lactating?
Perfect
oughtn't I to have lactated? oughtn't you to have lactated? oughtn't she to have lactated? oughtn't we to have lactated? oughtn't you to have lactated? oughtn't they to have lactated?
V-ing perfect
oughtn't I to have been lactating? oughtn't you to have been lactating? oughtn't she to have been lactating? oughtn't we to have been lactating? oughtn't you to have been lactating? oughtn't they to have been lactating?