ought to convulse
Regular verb: convulse - convulsed- convulsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to convulse
you ought to convulse
she ought to convulse
we ought to convulse
you ought to convulse
they ought to convulse 	I ought to be convulsing
you ought to be convulsing
she ought to be convulsing
we ought to be convulsing
you ought to be convulsing
they ought to be convulsing	I ought to have convulsed
you ought to have convulsed
she ought to have convulsed
we ought to have convulsed
you ought to have convulsed
they ought to have convulsed	I ought to have been convulsing
you ought to have been convulsing
she ought to have been convulsing
we ought to have been convulsing
you ought to have been convulsing
they ought to have been convulsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to convulse
you oughtn't to convulse
she oughtn't to convulse
we oughtn't to convulse
you oughtn't to convulse
they oughtn't to convulse 	I oughtn't to be convulsing
you oughtn't to be convulsing
she oughtn't to be convulsing
we oughtn't to be convulsing
you oughtn't to be convulsing
they oughtn't to be convulsing	I oughtn't to have convulsed
you oughtn't to have convulsed
she oughtn't to have convulsed
we oughtn't to have convulsed
you oughtn't to have convulsed
they oughtn't to have convulsed	I oughtn't to have been convulsing
you oughtn't to have been convulsing
she oughtn't to have been convulsing
we oughtn't to have been convulsing
you oughtn't to have been convulsing
they oughtn't to have been convulsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I convulse?
ought to you convulse?
ought to she convulse?
ought to we convulse?
ought to you convulse?
ought to they convulse? 	ought to I be convulsing?
ought to you be convulsing?
ought to she be convulsing?
ought to we be convulsing?
ought to you be convulsing?
ought to they be convulsing? 	ought to I have convulsed?
ought to you have convulsed?
ought to she have convulsed?
ought to we have convulsed?
ought to you have convulsed?
ought to they have convulsed? 	ought to I have been convulsing?
ought to you have been convulsing?
ought to she have been convulsing?
ought to we have been convulsing?
ought to you have been convulsing?
ought to they have been convulsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to convulse?
oughtn't you to convulse?
oughtn't she to convulse?
oughtn't we to convulse?
oughtn't you to convulse?
oughtn't they to convulse? 	oughtn't I to be convulsing?
oughtn't you to be convulsing?
oughtn't she to be convulsing?
oughtn't we to be convulsing?
oughtn't you to be convulsing?
oughtn't they to be convulsing? 	oughtn't I to have convulsed?
oughtn't you to have convulsed?
oughtn't she to have convulsed?
oughtn't we to have convulsed?
oughtn't you to have convulsed?
oughtn't they to have convulsed? 	oughtn't I to have been convulsing?
oughtn't you to have been convulsing?
oughtn't she to have been convulsing?
oughtn't we to have been convulsing?
oughtn't you to have been convulsing?
oughtn't they to have been convulsing?