ought to sentinel
Regular verb: sentinel - sentineled- sentineled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to sentinel
you ought to sentinel
he ought to sentinel
we ought to sentinel
you ought to sentinel
they ought to sentinel 	I ought to be sentineling
you ought to be sentineling
he ought to be sentineling
we ought to be sentineling
you ought to be sentineling
they ought to be sentineling	I ought to have sentineled
you ought to have sentineled
he ought to have sentineled
we ought to have sentineled
you ought to have sentineled
they ought to have sentineled	I ought to have been sentineling
you ought to have been sentineling
he ought to have been sentineling
we ought to have been sentineling
you ought to have been sentineling
they ought to have been sentineling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to sentinel
you oughtn't to sentinel
he oughtn't to sentinel
we oughtn't to sentinel
you oughtn't to sentinel
they oughtn't to sentinel 	I oughtn't to be sentineling
you oughtn't to be sentineling
he oughtn't to be sentineling
we oughtn't to be sentineling
you oughtn't to be sentineling
they oughtn't to be sentineling	I oughtn't to have sentineled
you oughtn't to have sentineled
he oughtn't to have sentineled
we oughtn't to have sentineled
you oughtn't to have sentineled
they oughtn't to have sentineled	I oughtn't to have been sentineling
you oughtn't to have been sentineling
he oughtn't to have been sentineling
we oughtn't to have been sentineling
you oughtn't to have been sentineling
they oughtn't to have been sentineling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I sentinel?
ought to you sentinel?
ought to he sentinel?
ought to we sentinel?
ought to you sentinel?
ought to they sentinel? 	ought to I be sentineling?
ought to you be sentineling?
ought to he be sentineling?
ought to we be sentineling?
ought to you be sentineling?
ought to they be sentineling? 	ought to I have sentineled?
ought to you have sentineled?
ought to he have sentineled?
ought to we have sentineled?
ought to you have sentineled?
ought to they have sentineled? 	ought to I have been sentineling?
ought to you have been sentineling?
ought to he have been sentineling?
ought to we have been sentineling?
ought to you have been sentineling?
ought to they have been sentineling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to sentinel?
oughtn't you to sentinel?
oughtn't he to sentinel?
oughtn't we to sentinel?
oughtn't you to sentinel?
oughtn't they to sentinel? 	oughtn't I to be sentineling?
oughtn't you to be sentineling?
oughtn't he to be sentineling?
oughtn't we to be sentineling?
oughtn't you to be sentineling?
oughtn't they to be sentineling? 	oughtn't I to have sentineled?
oughtn't you to have sentineled?
oughtn't he to have sentineled?
oughtn't we to have sentineled?
oughtn't you to have sentineled?
oughtn't they to have sentineled? 	oughtn't I to have been sentineling?
oughtn't you to have been sentineling?
oughtn't he to have been sentineling?
oughtn't we to have been sentineling?
oughtn't you to have been sentineling?
oughtn't they to have been sentineling?