ought to grumble
Regular verb: grumble - grumbled- grumbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to grumble
you ought to grumble
she ought to grumble
we ought to grumble
you ought to grumble
they ought to grumble 	I ought to be grumbling
you ought to be grumbling
she ought to be grumbling
we ought to be grumbling
you ought to be grumbling
they ought to be grumbling	I ought to have grumbled
you ought to have grumbled
she ought to have grumbled
we ought to have grumbled
you ought to have grumbled
they ought to have grumbled	I ought to have been grumbling
you ought to have been grumbling
she ought to have been grumbling
we ought to have been grumbling
you ought to have been grumbling
they ought to have been grumbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to grumble
you ought not to grumble
she ought not to grumble
we ought not to grumble
you ought not to grumble
they ought not to grumble 	I ought not to grumbling
you ought not to grumbling
she ought not to grumbling
we ought not to grumbling
you ought not to grumbling
they ought not to grumbling	I ought not to have grumbled
you ought not to have grumbled
she ought not to have grumbled
we ought not to have grumbled
you ought not to have grumbled
they ought not to have grumbled	I ought not to have been grumbling
you ought not to have been grumbling
she ought not to have been grumbling
we ought not to have been grumbling
you ought not to have been grumbling
they ought not to have been grumbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I grumble?
ought to you grumble?
ought to she grumble?
ought to we grumble?
ought to you grumble?
ought to they grumble? 	ought to I be grumbling?
ought to you be grumbling?
ought to she be grumbling?
ought to we be grumbling?
ought to you be grumbling?
ought to they be grumbling? 	ought to I have grumbled?
ought to you have grumbled?
ought to she have grumbled?
ought to we have grumbled?
ought to you have grumbled?
ought to they have grumbled? 	ought to I have been grumbling?
ought to you have been grumbling?
ought to she have been grumbling?
ought to we have been grumbling?
ought to you have been grumbling?
ought to they have been grumbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to grumble?
ought you not to grumble?
ought she not to grumble?
ought we not to grumble?
ought you not to grumble?
ought they not to grumble? 	ought I not to be grumbling?
ought you not to be grumbling?
ought she not to be grumbling?
ought we not to be grumbling?
ought you not to be grumbling?
ought they not to be grumbling? 	ought I not to have grumbled?
ought you not to have grumbled?
ought she not to have grumbled?
ought we not to have grumbled?
ought you not to have grumbled?
ought they not to have grumbled? 	ought I not to have been grumbling?
ought you not to have been grumbling?
ought she not to have been grumbling?
ought we not to have been grumbling?
ought you not to have been grumbling?
ought they not to have been grumbling?