ought to necessitate
Regular verb: necessitate - necessitated- necessitated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to necessitate
you ought to necessitate
she ought to necessitate
we ought to necessitate
you ought to necessitate
they ought to necessitate 	I ought to be necessitating
you ought to be necessitating
she ought to be necessitating
we ought to be necessitating
you ought to be necessitating
they ought to be necessitating	I ought to have necessitated
you ought to have necessitated
she ought to have necessitated
we ought to have necessitated
you ought to have necessitated
they ought to have necessitated	I ought to have been necessitating
you ought to have been necessitating
she ought to have been necessitating
we ought to have been necessitating
you ought to have been necessitating
they ought to have been necessitating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to necessitate
you oughtn't to necessitate
she oughtn't to necessitate
we oughtn't to necessitate
you oughtn't to necessitate
they oughtn't to necessitate 	I oughtn't to be necessitating
you oughtn't to be necessitating
she oughtn't to be necessitating
we oughtn't to be necessitating
you oughtn't to be necessitating
they oughtn't to be necessitating	I oughtn't to have necessitated
you oughtn't to have necessitated
she oughtn't to have necessitated
we oughtn't to have necessitated
you oughtn't to have necessitated
they oughtn't to have necessitated	I oughtn't to have been necessitating
you oughtn't to have been necessitating
she oughtn't to have been necessitating
we oughtn't to have been necessitating
you oughtn't to have been necessitating
they oughtn't to have been necessitating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I necessitate?
ought to you necessitate?
ought to she necessitate?
ought to we necessitate?
ought to you necessitate?
ought to they necessitate? 	ought to I be necessitating?
ought to you be necessitating?
ought to she be necessitating?
ought to we be necessitating?
ought to you be necessitating?
ought to they be necessitating? 	ought to I have necessitated?
ought to you have necessitated?
ought to she have necessitated?
ought to we have necessitated?
ought to you have necessitated?
ought to they have necessitated? 	ought to I have been necessitating?
ought to you have been necessitating?
ought to she have been necessitating?
ought to we have been necessitating?
ought to you have been necessitating?
ought to they have been necessitating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to necessitate?
oughtn't you to necessitate?
oughtn't she to necessitate?
oughtn't we to necessitate?
oughtn't you to necessitate?
oughtn't they to necessitate? 	oughtn't I to be necessitating?
oughtn't you to be necessitating?
oughtn't she to be necessitating?
oughtn't we to be necessitating?
oughtn't you to be necessitating?
oughtn't they to be necessitating? 	oughtn't I to have necessitated?
oughtn't you to have necessitated?
oughtn't she to have necessitated?
oughtn't we to have necessitated?
oughtn't you to have necessitated?
oughtn't they to have necessitated? 	oughtn't I to have been necessitating?
oughtn't you to have been necessitating?
oughtn't she to have been necessitating?
oughtn't we to have been necessitating?
oughtn't you to have been necessitating?
oughtn't they to have been necessitating?