ought to overthrow
Irregular verb: overthrow - overthrew- overthrown

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to overthrow
you ought to overthrow
he ought to overthrow
we ought to overthrow
you ought to overthrow
they ought to overthrow 	I ought to be overthrowing
you ought to be overthrowing
he ought to be overthrowing
we ought to be overthrowing
you ought to be overthrowing
they ought to be overthrowing	I ought to have overthrown
you ought to have overthrown
he ought to have overthrown
we ought to have overthrown
you ought to have overthrown
they ought to have overthrown	I ought to have been overthrowing
you ought to have been overthrowing
he ought to have been overthrowing
we ought to have been overthrowing
you ought to have been overthrowing
they ought to have been overthrowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to overthrow
you ought not to overthrow
he ought not to overthrow
we ought not to overthrow
you ought not to overthrow
they ought not to overthrow 	I ought not to overthrowing
you ought not to overthrowing
he ought not to overthrowing
we ought not to overthrowing
you ought not to overthrowing
they ought not to overthrowing	I ought not to have overthrown
you ought not to have overthrown
he ought not to have overthrown
we ought not to have overthrown
you ought not to have overthrown
they ought not to have overthrown	I ought not to have been overthrowing
you ought not to have been overthrowing
he ought not to have been overthrowing
we ought not to have been overthrowing
you ought not to have been overthrowing
they ought not to have been overthrowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I overthrow?
ought to you overthrow?
ought to he overthrow?
ought to we overthrow?
ought to you overthrow?
ought to they overthrow? 	ought to I be overthrowing?
ought to you be overthrowing?
ought to he be overthrowing?
ought to we be overthrowing?
ought to you be overthrowing?
ought to they be overthrowing? 	ought to I have overthrown?
ought to you have overthrown?
ought to he have overthrown?
ought to we have overthrown?
ought to you have overthrown?
ought to they have overthrown? 	ought to I have been overthrowing?
ought to you have been overthrowing?
ought to he have been overthrowing?
ought to we have been overthrowing?
ought to you have been overthrowing?
ought to they have been overthrowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to overthrow?
ought you not to overthrow?
ought he not to overthrow?
ought we not to overthrow?
ought you not to overthrow?
ought they not to overthrow? 	ought I not to be overthrowing?
ought you not to be overthrowing?
ought he not to be overthrowing?
ought we not to be overthrowing?
ought you not to be overthrowing?
ought they not to be overthrowing? 	ought I not to have overthrown?
ought you not to have overthrown?
ought he not to have overthrown?
ought we not to have overthrown?
ought you not to have overthrown?
ought they not to have overthrown? 	ought I not to have been overthrowing?
ought you not to have been overthrowing?
ought he not to have been overthrowing?
ought we not to have been overthrowing?
ought you not to have been overthrowing?
ought they not to have been overthrowing?