ought to throb
Regular verb: throb - throbbed- throbbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to throb
you ought to throb
he ought to throb
we ought to throb
you ought to throb
they ought to throb 	I ought to be throbbing
you ought to be throbbing
he ought to be throbbing
we ought to be throbbing
you ought to be throbbing
they ought to be throbbing	I ought to have throbbed
you ought to have throbbed
he ought to have throbbed
we ought to have throbbed
you ought to have throbbed
they ought to have throbbed	I ought to have been throbbing
you ought to have been throbbing
he ought to have been throbbing
we ought to have been throbbing
you ought to have been throbbing
they ought to have been throbbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to throb
you ought not to throb
he ought not to throb
we ought not to throb
you ought not to throb
they ought not to throb 	I ought not to throbbing
you ought not to throbbing
he ought not to throbbing
we ought not to throbbing
you ought not to throbbing
they ought not to throbbing	I ought not to have throbbed
you ought not to have throbbed
he ought not to have throbbed
we ought not to have throbbed
you ought not to have throbbed
they ought not to have throbbed	I ought not to have been throbbing
you ought not to have been throbbing
he ought not to have been throbbing
we ought not to have been throbbing
you ought not to have been throbbing
they ought not to have been throbbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I throb?
ought to you throb?
ought to he throb?
ought to we throb?
ought to you throb?
ought to they throb? 	ought to I be throbbing?
ought to you be throbbing?
ought to he be throbbing?
ought to we be throbbing?
ought to you be throbbing?
ought to they be throbbing? 	ought to I have throbbed?
ought to you have throbbed?
ought to he have throbbed?
ought to we have throbbed?
ought to you have throbbed?
ought to they have throbbed? 	ought to I have been throbbing?
ought to you have been throbbing?
ought to he have been throbbing?
ought to we have been throbbing?
ought to you have been throbbing?
ought to they have been throbbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to throb?
ought you not to throb?
ought he not to throb?
ought we not to throb?
ought you not to throb?
ought they not to throb? 	ought I not to be throbbing?
ought you not to be throbbing?
ought he not to be throbbing?
ought we not to be throbbing?
ought you not to be throbbing?
ought they not to be throbbing? 	ought I not to have throbbed?
ought you not to have throbbed?
ought he not to have throbbed?
ought we not to have throbbed?
ought you not to have throbbed?
ought they not to have throbbed? 	ought I not to have been throbbing?
ought you not to have been throbbing?
ought he not to have been throbbing?
ought we not to have been throbbing?
ought you not to have been throbbing?
ought they not to have been throbbing?