ought to untie
Regular verb: untie - untied- untied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to untie
you ought to untie
he ought to untie
we ought to untie
you ought to untie
they ought to untie 	I ought to be untying
you ought to be untying
he ought to be untying
we ought to be untying
you ought to be untying
they ought to be untying	I ought to have untied
you ought to have untied
he ought to have untied
we ought to have untied
you ought to have untied
they ought to have untied	I ought to have been untying
you ought to have been untying
he ought to have been untying
we ought to have been untying
you ought to have been untying
they ought to have been untying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to untie
you oughtn't to untie
he oughtn't to untie
we oughtn't to untie
you oughtn't to untie
they oughtn't to untie 	I oughtn't to be untying
you oughtn't to be untying
he oughtn't to be untying
we oughtn't to be untying
you oughtn't to be untying
they oughtn't to be untying	I oughtn't to have untied
you oughtn't to have untied
he oughtn't to have untied
we oughtn't to have untied
you oughtn't to have untied
they oughtn't to have untied	I oughtn't to have been untying
you oughtn't to have been untying
he oughtn't to have been untying
we oughtn't to have been untying
you oughtn't to have been untying
they oughtn't to have been untying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I untie?
ought to you untie?
ought to he untie?
ought to we untie?
ought to you untie?
ought to they untie? 	ought to I be untying?
ought to you be untying?
ought to he be untying?
ought to we be untying?
ought to you be untying?
ought to they be untying? 	ought to I have untied?
ought to you have untied?
ought to he have untied?
ought to we have untied?
ought to you have untied?
ought to they have untied? 	ought to I have been untying?
ought to you have been untying?
ought to he have been untying?
ought to we have been untying?
ought to you have been untying?
ought to they have been untying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to untie?
oughtn't you to untie?
oughtn't he to untie?
oughtn't we to untie?
oughtn't you to untie?
oughtn't they to untie? 	oughtn't I to be untying?
oughtn't you to be untying?
oughtn't he to be untying?
oughtn't we to be untying?
oughtn't you to be untying?
oughtn't they to be untying? 	oughtn't I to have untied?
oughtn't you to have untied?
oughtn't he to have untied?
oughtn't we to have untied?
oughtn't you to have untied?
oughtn't they to have untied? 	oughtn't I to have been untying?
oughtn't you to have been untying?
oughtn't he to have been untying?
oughtn't we to have been untying?
oughtn't you to have been untying?
oughtn't they to have been untying?