ought to grump
Regular verb: grump - grumped- grumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to grump
you ought to grump
she ought to grump
we ought to grump
you ought to grump
they ought to grump 	I ought to be grumping
you ought to be grumping
she ought to be grumping
we ought to be grumping
you ought to be grumping
they ought to be grumping	I ought to have grumped
you ought to have grumped
she ought to have grumped
we ought to have grumped
you ought to have grumped
they ought to have grumped	I ought to have been grumping
you ought to have been grumping
she ought to have been grumping
we ought to have been grumping
you ought to have been grumping
they ought to have been grumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to grump
you oughtn't to grump
she oughtn't to grump
we oughtn't to grump
you oughtn't to grump
they oughtn't to grump 	I oughtn't to be grumping
you oughtn't to be grumping
she oughtn't to be grumping
we oughtn't to be grumping
you oughtn't to be grumping
they oughtn't to be grumping	I oughtn't to have grumped
you oughtn't to have grumped
she oughtn't to have grumped
we oughtn't to have grumped
you oughtn't to have grumped
they oughtn't to have grumped	I oughtn't to have been grumping
you oughtn't to have been grumping
she oughtn't to have been grumping
we oughtn't to have been grumping
you oughtn't to have been grumping
they oughtn't to have been grumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I grump?
ought to you grump?
ought to she grump?
ought to we grump?
ought to you grump?
ought to they grump? 	ought to I be grumping?
ought to you be grumping?
ought to she be grumping?
ought to we be grumping?
ought to you be grumping?
ought to they be grumping? 	ought to I have grumped?
ought to you have grumped?
ought to she have grumped?
ought to we have grumped?
ought to you have grumped?
ought to they have grumped? 	ought to I have been grumping?
ought to you have been grumping?
ought to she have been grumping?
ought to we have been grumping?
ought to you have been grumping?
ought to they have been grumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to grump?
oughtn't you to grump?
oughtn't she to grump?
oughtn't we to grump?
oughtn't you to grump?
oughtn't they to grump? 	oughtn't I to be grumping?
oughtn't you to be grumping?
oughtn't she to be grumping?
oughtn't we to be grumping?
oughtn't you to be grumping?
oughtn't they to be grumping? 	oughtn't I to have grumped?
oughtn't you to have grumped?
oughtn't she to have grumped?
oughtn't we to have grumped?
oughtn't you to have grumped?
oughtn't they to have grumped? 	oughtn't I to have been grumping?
oughtn't you to have been grumping?
oughtn't she to have been grumping?
oughtn't we to have been grumping?
oughtn't you to have been grumping?
oughtn't they to have been grumping?