ought to sag
Regular verb: sag - sagged- sagged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to sag
you ought to sag
he ought to sag
we ought to sag
you ought to sag
they ought to sag 	I ought to be sagging
you ought to be sagging
he ought to be sagging
we ought to be sagging
you ought to be sagging
they ought to be sagging	I ought to have sagged
you ought to have sagged
he ought to have sagged
we ought to have sagged
you ought to have sagged
they ought to have sagged	I ought to have been sagging
you ought to have been sagging
he ought to have been sagging
we ought to have been sagging
you ought to have been sagging
they ought to have been sagging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to sag
you oughtn't to sag
he oughtn't to sag
we oughtn't to sag
you oughtn't to sag
they oughtn't to sag 	I oughtn't to be sagging
you oughtn't to be sagging
he oughtn't to be sagging
we oughtn't to be sagging
you oughtn't to be sagging
they oughtn't to be sagging	I oughtn't to have sagged
you oughtn't to have sagged
he oughtn't to have sagged
we oughtn't to have sagged
you oughtn't to have sagged
they oughtn't to have sagged	I oughtn't to have been sagging
you oughtn't to have been sagging
he oughtn't to have been sagging
we oughtn't to have been sagging
you oughtn't to have been sagging
they oughtn't to have been sagging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I sag?
ought to you sag?
ought to he sag?
ought to we sag?
ought to you sag?
ought to they sag? 	ought to I be sagging?
ought to you be sagging?
ought to he be sagging?
ought to we be sagging?
ought to you be sagging?
ought to they be sagging? 	ought to I have sagged?
ought to you have sagged?
ought to he have sagged?
ought to we have sagged?
ought to you have sagged?
ought to they have sagged? 	ought to I have been sagging?
ought to you have been sagging?
ought to he have been sagging?
ought to we have been sagging?
ought to you have been sagging?
ought to they have been sagging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to sag?
oughtn't you to sag?
oughtn't he to sag?
oughtn't we to sag?
oughtn't you to sag?
oughtn't they to sag? 	oughtn't I to be sagging?
oughtn't you to be sagging?
oughtn't he to be sagging?
oughtn't we to be sagging?
oughtn't you to be sagging?
oughtn't they to be sagging? 	oughtn't I to have sagged?
oughtn't you to have sagged?
oughtn't he to have sagged?
oughtn't we to have sagged?
oughtn't you to have sagged?
oughtn't they to have sagged? 	oughtn't I to have been sagging?
oughtn't you to have been sagging?
oughtn't he to have been sagging?
oughtn't we to have been sagging?
oughtn't you to have been sagging?
oughtn't they to have been sagging?