ought to usurp
Regular verb: usurp - usurped- usurped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to usurp
you ought to usurp
he ought to usurp
we ought to usurp
you ought to usurp
they ought to usurp 	I ought to be usurping
you ought to be usurping
he ought to be usurping
we ought to be usurping
you ought to be usurping
they ought to be usurping	I ought to have usurped
you ought to have usurped
he ought to have usurped
we ought to have usurped
you ought to have usurped
they ought to have usurped	I ought to have been usurping
you ought to have been usurping
he ought to have been usurping
we ought to have been usurping
you ought to have been usurping
they ought to have been usurping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to usurp
you oughtn't to usurp
he oughtn't to usurp
we oughtn't to usurp
you oughtn't to usurp
they oughtn't to usurp 	I oughtn't to be usurping
you oughtn't to be usurping
he oughtn't to be usurping
we oughtn't to be usurping
you oughtn't to be usurping
they oughtn't to be usurping	I oughtn't to have usurped
you oughtn't to have usurped
he oughtn't to have usurped
we oughtn't to have usurped
you oughtn't to have usurped
they oughtn't to have usurped	I oughtn't to have been usurping
you oughtn't to have been usurping
he oughtn't to have been usurping
we oughtn't to have been usurping
you oughtn't to have been usurping
they oughtn't to have been usurping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I usurp?
ought to you usurp?
ought to he usurp?
ought to we usurp?
ought to you usurp?
ought to they usurp? 	ought to I be usurping?
ought to you be usurping?
ought to he be usurping?
ought to we be usurping?
ought to you be usurping?
ought to they be usurping? 	ought to I have usurped?
ought to you have usurped?
ought to he have usurped?
ought to we have usurped?
ought to you have usurped?
ought to they have usurped? 	ought to I have been usurping?
ought to you have been usurping?
ought to he have been usurping?
ought to we have been usurping?
ought to you have been usurping?
ought to they have been usurping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to usurp?
oughtn't you to usurp?
oughtn't he to usurp?
oughtn't we to usurp?
oughtn't you to usurp?
oughtn't they to usurp? 	oughtn't I to be usurping?
oughtn't you to be usurping?
oughtn't he to be usurping?
oughtn't we to be usurping?
oughtn't you to be usurping?
oughtn't they to be usurping? 	oughtn't I to have usurped?
oughtn't you to have usurped?
oughtn't he to have usurped?
oughtn't we to have usurped?
oughtn't you to have usurped?
oughtn't they to have usurped? 	oughtn't I to have been usurping?
oughtn't you to have been usurping?
oughtn't he to have been usurping?
oughtn't we to have been usurping?
oughtn't you to have been usurping?
oughtn't they to have been usurping?