ought to tack
Regular verb: tack - tacked- tacked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to tack
you ought to tack
she ought to tack
we ought to tack
you ought to tack
they ought to tack 	I ought to be tacking
you ought to be tacking
she ought to be tacking
we ought to be tacking
you ought to be tacking
they ought to be tacking	I ought to have tacked
you ought to have tacked
she ought to have tacked
we ought to have tacked
you ought to have tacked
they ought to have tacked	I ought to have been tacking
you ought to have been tacking
she ought to have been tacking
we ought to have been tacking
you ought to have been tacking
they ought to have been tacking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to tack
you oughtn't to tack
she oughtn't to tack
we oughtn't to tack
you oughtn't to tack
they oughtn't to tack 	I oughtn't to be tacking
you oughtn't to be tacking
she oughtn't to be tacking
we oughtn't to be tacking
you oughtn't to be tacking
they oughtn't to be tacking	I oughtn't to have tacked
you oughtn't to have tacked
she oughtn't to have tacked
we oughtn't to have tacked
you oughtn't to have tacked
they oughtn't to have tacked	I oughtn't to have been tacking
you oughtn't to have been tacking
she oughtn't to have been tacking
we oughtn't to have been tacking
you oughtn't to have been tacking
they oughtn't to have been tacking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I tack?
ought to you tack?
ought to she tack?
ought to we tack?
ought to you tack?
ought to they tack? 	ought to I be tacking?
ought to you be tacking?
ought to she be tacking?
ought to we be tacking?
ought to you be tacking?
ought to they be tacking? 	ought to I have tacked?
ought to you have tacked?
ought to she have tacked?
ought to we have tacked?
ought to you have tacked?
ought to they have tacked? 	ought to I have been tacking?
ought to you have been tacking?
ought to she have been tacking?
ought to we have been tacking?
ought to you have been tacking?
ought to they have been tacking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to tack?
oughtn't you to tack?
oughtn't she to tack?
oughtn't we to tack?
oughtn't you to tack?
oughtn't they to tack? 	oughtn't I to be tacking?
oughtn't you to be tacking?
oughtn't she to be tacking?
oughtn't we to be tacking?
oughtn't you to be tacking?
oughtn't they to be tacking? 	oughtn't I to have tacked?
oughtn't you to have tacked?
oughtn't she to have tacked?
oughtn't we to have tacked?
oughtn't you to have tacked?
oughtn't they to have tacked? 	oughtn't I to have been tacking?
oughtn't you to have been tacking?
oughtn't she to have been tacking?
oughtn't we to have been tacking?
oughtn't you to have been tacking?
oughtn't they to have been tacking?