ought to staple
Regular verb: staple - stapled- stapled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to staple
you ought to staple
she ought to staple
we ought to staple
you ought to staple
they ought to staple 	I ought to be stapling
you ought to be stapling
she ought to be stapling
we ought to be stapling
you ought to be stapling
they ought to be stapling	I ought to have stapled
you ought to have stapled
she ought to have stapled
we ought to have stapled
you ought to have stapled
they ought to have stapled	I ought to have been stapling
you ought to have been stapling
she ought to have been stapling
we ought to have been stapling
you ought to have been stapling
they ought to have been stapling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to staple
you oughtn't to staple
she oughtn't to staple
we oughtn't to staple
you oughtn't to staple
they oughtn't to staple 	I oughtn't to be stapling
you oughtn't to be stapling
she oughtn't to be stapling
we oughtn't to be stapling
you oughtn't to be stapling
they oughtn't to be stapling	I oughtn't to have stapled
you oughtn't to have stapled
she oughtn't to have stapled
we oughtn't to have stapled
you oughtn't to have stapled
they oughtn't to have stapled	I oughtn't to have been stapling
you oughtn't to have been stapling
she oughtn't to have been stapling
we oughtn't to have been stapling
you oughtn't to have been stapling
they oughtn't to have been stapling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I staple?
ought to you staple?
ought to she staple?
ought to we staple?
ought to you staple?
ought to they staple? 	ought to I be stapling?
ought to you be stapling?
ought to she be stapling?
ought to we be stapling?
ought to you be stapling?
ought to they be stapling? 	ought to I have stapled?
ought to you have stapled?
ought to she have stapled?
ought to we have stapled?
ought to you have stapled?
ought to they have stapled? 	ought to I have been stapling?
ought to you have been stapling?
ought to she have been stapling?
ought to we have been stapling?
ought to you have been stapling?
ought to they have been stapling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to staple?
oughtn't you to staple?
oughtn't she to staple?
oughtn't we to staple?
oughtn't you to staple?
oughtn't they to staple? 	oughtn't I to be stapling?
oughtn't you to be stapling?
oughtn't she to be stapling?
oughtn't we to be stapling?
oughtn't you to be stapling?
oughtn't they to be stapling? 	oughtn't I to have stapled?
oughtn't you to have stapled?
oughtn't she to have stapled?
oughtn't we to have stapled?
oughtn't you to have stapled?
oughtn't they to have stapled? 	oughtn't I to have been stapling?
oughtn't you to have been stapling?
oughtn't she to have been stapling?
oughtn't we to have been stapling?
oughtn't you to have been stapling?
oughtn't they to have been stapling?