ought to erupt
Regular verb: erupt - erupted- erupted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to erupt
you ought to erupt
he ought to erupt
we ought to erupt
you ought to erupt
they ought to erupt 	I ought to be erupting
you ought to be erupting
he ought to be erupting
we ought to be erupting
you ought to be erupting
they ought to be erupting	I ought to have erupted
you ought to have erupted
he ought to have erupted
we ought to have erupted
you ought to have erupted
they ought to have erupted	I ought to have been erupting
you ought to have been erupting
he ought to have been erupting
we ought to have been erupting
you ought to have been erupting
they ought to have been erupting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to erupt
you ought not to erupt
he ought not to erupt
we ought not to erupt
you ought not to erupt
they ought not to erupt 	I ought not to erupting
you ought not to erupting
he ought not to erupting
we ought not to erupting
you ought not to erupting
they ought not to erupting	I ought not to have erupted
you ought not to have erupted
he ought not to have erupted
we ought not to have erupted
you ought not to have erupted
they ought not to have erupted	I ought not to have been erupting
you ought not to have been erupting
he ought not to have been erupting
we ought not to have been erupting
you ought not to have been erupting
they ought not to have been erupting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I erupt?
ought to you erupt?
ought to he erupt?
ought to we erupt?
ought to you erupt?
ought to they erupt? 	ought to I be erupting?
ought to you be erupting?
ought to he be erupting?
ought to we be erupting?
ought to you be erupting?
ought to they be erupting? 	ought to I have erupted?
ought to you have erupted?
ought to he have erupted?
ought to we have erupted?
ought to you have erupted?
ought to they have erupted? 	ought to I have been erupting?
ought to you have been erupting?
ought to he have been erupting?
ought to we have been erupting?
ought to you have been erupting?
ought to they have been erupting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to erupt?
ought you not to erupt?
ought he not to erupt?
ought we not to erupt?
ought you not to erupt?
ought they not to erupt? 	ought I not to be erupting?
ought you not to be erupting?
ought he not to be erupting?
ought we not to be erupting?
ought you not to be erupting?
ought they not to be erupting? 	ought I not to have erupted?
ought you not to have erupted?
ought he not to have erupted?
ought we not to have erupted?
ought you not to have erupted?
ought they not to have erupted? 	ought I not to have been erupting?
ought you not to have been erupting?
ought he not to have been erupting?
ought we not to have been erupting?
ought you not to have been erupting?
ought they not to have been erupting?