ought to flat
Regular verb: flat - flated- flated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to flat
you ought to flat
she ought to flat
we ought to flat
you ought to flat
they ought to flat 	I ought to be flating
you ought to be flating
she ought to be flating
we ought to be flating
you ought to be flating
they ought to be flating	I ought to have flated
you ought to have flated
she ought to have flated
we ought to have flated
you ought to have flated
they ought to have flated	I ought to have been flating
you ought to have been flating
she ought to have been flating
we ought to have been flating
you ought to have been flating
they ought to have been flating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to flat
you oughtn't to flat
she oughtn't to flat
we oughtn't to flat
you oughtn't to flat
they oughtn't to flat 	I oughtn't to be flating
you oughtn't to be flating
she oughtn't to be flating
we oughtn't to be flating
you oughtn't to be flating
they oughtn't to be flating	I oughtn't to have flated
you oughtn't to have flated
she oughtn't to have flated
we oughtn't to have flated
you oughtn't to have flated
they oughtn't to have flated	I oughtn't to have been flating
you oughtn't to have been flating
she oughtn't to have been flating
we oughtn't to have been flating
you oughtn't to have been flating
they oughtn't to have been flating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I flat?
ought to you flat?
ought to she flat?
ought to we flat?
ought to you flat?
ought to they flat? 	ought to I be flating?
ought to you be flating?
ought to she be flating?
ought to we be flating?
ought to you be flating?
ought to they be flating? 	ought to I have flated?
ought to you have flated?
ought to she have flated?
ought to we have flated?
ought to you have flated?
ought to they have flated? 	ought to I have been flating?
ought to you have been flating?
ought to she have been flating?
ought to we have been flating?
ought to you have been flating?
ought to they have been flating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to flat?
oughtn't you to flat?
oughtn't she to flat?
oughtn't we to flat?
oughtn't you to flat?
oughtn't they to flat? 	oughtn't I to be flating?
oughtn't you to be flating?
oughtn't she to be flating?
oughtn't we to be flating?
oughtn't you to be flating?
oughtn't they to be flating? 	oughtn't I to have flated?
oughtn't you to have flated?
oughtn't she to have flated?
oughtn't we to have flated?
oughtn't you to have flated?
oughtn't they to have flated? 	oughtn't I to have been flating?
oughtn't you to have been flating?
oughtn't she to have been flating?
oughtn't we to have been flating?
oughtn't you to have been flating?
oughtn't they to have been flating?