ought to backstroke
Regular verb: backstroke - backstroked- backstroked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to backstroke
you ought to backstroke
he ought to backstroke
we ought to backstroke
you ought to backstroke
they ought to backstroke 	I ought to be backstroking
you ought to be backstroking
he ought to be backstroking
we ought to be backstroking
you ought to be backstroking
they ought to be backstroking	I ought to have backstroked
you ought to have backstroked
he ought to have backstroked
we ought to have backstroked
you ought to have backstroked
they ought to have backstroked	I ought to have been backstroking
you ought to have been backstroking
he ought to have been backstroking
we ought to have been backstroking
you ought to have been backstroking
they ought to have been backstroking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to backstroke
you oughtn't to backstroke
he oughtn't to backstroke
we oughtn't to backstroke
you oughtn't to backstroke
they oughtn't to backstroke 	I oughtn't to be backstroking
you oughtn't to be backstroking
he oughtn't to be backstroking
we oughtn't to be backstroking
you oughtn't to be backstroking
they oughtn't to be backstroking	I oughtn't to have backstroked
you oughtn't to have backstroked
he oughtn't to have backstroked
we oughtn't to have backstroked
you oughtn't to have backstroked
they oughtn't to have backstroked	I oughtn't to have been backstroking
you oughtn't to have been backstroking
he oughtn't to have been backstroking
we oughtn't to have been backstroking
you oughtn't to have been backstroking
they oughtn't to have been backstroking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I backstroke?
ought to you backstroke?
ought to he backstroke?
ought to we backstroke?
ought to you backstroke?
ought to they backstroke? 	ought to I be backstroking?
ought to you be backstroking?
ought to he be backstroking?
ought to we be backstroking?
ought to you be backstroking?
ought to they be backstroking? 	ought to I have backstroked?
ought to you have backstroked?
ought to he have backstroked?
ought to we have backstroked?
ought to you have backstroked?
ought to they have backstroked? 	ought to I have been backstroking?
ought to you have been backstroking?
ought to he have been backstroking?
ought to we have been backstroking?
ought to you have been backstroking?
ought to they have been backstroking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to backstroke?
oughtn't you to backstroke?
oughtn't he to backstroke?
oughtn't we to backstroke?
oughtn't you to backstroke?
oughtn't they to backstroke? 	oughtn't I to be backstroking?
oughtn't you to be backstroking?
oughtn't he to be backstroking?
oughtn't we to be backstroking?
oughtn't you to be backstroking?
oughtn't they to be backstroking? 	oughtn't I to have backstroked?
oughtn't you to have backstroked?
oughtn't he to have backstroked?
oughtn't we to have backstroked?
oughtn't you to have backstroked?
oughtn't they to have backstroked? 	oughtn't I to have been backstroking?
oughtn't you to have been backstroking?
oughtn't he to have been backstroking?
oughtn't we to have been backstroking?
oughtn't you to have been backstroking?
oughtn't they to have been backstroking?