ought to tat
Regular verb: tat - tatted- tatted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to tat
you ought to tat
he ought to tat
we ought to tat
you ought to tat
they ought to tat 	I ought to be tatting
you ought to be tatting
he ought to be tatting
we ought to be tatting
you ought to be tatting
they ought to be tatting	I ought to have tatted
you ought to have tatted
he ought to have tatted
we ought to have tatted
you ought to have tatted
they ought to have tatted	I ought to have been tatting
you ought to have been tatting
he ought to have been tatting
we ought to have been tatting
you ought to have been tatting
they ought to have been tatting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to tat
you oughtn't to tat
he oughtn't to tat
we oughtn't to tat
you oughtn't to tat
they oughtn't to tat 	I oughtn't to be tatting
you oughtn't to be tatting
he oughtn't to be tatting
we oughtn't to be tatting
you oughtn't to be tatting
they oughtn't to be tatting	I oughtn't to have tatted
you oughtn't to have tatted
he oughtn't to have tatted
we oughtn't to have tatted
you oughtn't to have tatted
they oughtn't to have tatted	I oughtn't to have been tatting
you oughtn't to have been tatting
he oughtn't to have been tatting
we oughtn't to have been tatting
you oughtn't to have been tatting
they oughtn't to have been tatting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I tat?
ought to you tat?
ought to he tat?
ought to we tat?
ought to you tat?
ought to they tat? 	ought to I be tatting?
ought to you be tatting?
ought to he be tatting?
ought to we be tatting?
ought to you be tatting?
ought to they be tatting? 	ought to I have tatted?
ought to you have tatted?
ought to he have tatted?
ought to we have tatted?
ought to you have tatted?
ought to they have tatted? 	ought to I have been tatting?
ought to you have been tatting?
ought to he have been tatting?
ought to we have been tatting?
ought to you have been tatting?
ought to they have been tatting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to tat?
oughtn't you to tat?
oughtn't he to tat?
oughtn't we to tat?
oughtn't you to tat?
oughtn't they to tat? 	oughtn't I to be tatting?
oughtn't you to be tatting?
oughtn't he to be tatting?
oughtn't we to be tatting?
oughtn't you to be tatting?
oughtn't they to be tatting? 	oughtn't I to have tatted?
oughtn't you to have tatted?
oughtn't he to have tatted?
oughtn't we to have tatted?
oughtn't you to have tatted?
oughtn't they to have tatted? 	oughtn't I to have been tatting?
oughtn't you to have been tatting?
oughtn't he to have been tatting?
oughtn't we to have been tatting?
oughtn't you to have been tatting?
oughtn't they to have been tatting?