ought to postdate
Regular verb: postdate - postdated- postdated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to postdate
you ought to postdate
he ought to postdate
we ought to postdate
you ought to postdate
they ought to postdate 	I ought to be postdating
you ought to be postdating
he ought to be postdating
we ought to be postdating
you ought to be postdating
they ought to be postdating	I ought to have postdated
you ought to have postdated
he ought to have postdated
we ought to have postdated
you ought to have postdated
they ought to have postdated	I ought to have been postdating
you ought to have been postdating
he ought to have been postdating
we ought to have been postdating
you ought to have been postdating
they ought to have been postdating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to postdate
you oughtn't to postdate
he oughtn't to postdate
we oughtn't to postdate
you oughtn't to postdate
they oughtn't to postdate 	I oughtn't to be postdating
you oughtn't to be postdating
he oughtn't to be postdating
we oughtn't to be postdating
you oughtn't to be postdating
they oughtn't to be postdating	I oughtn't to have postdated
you oughtn't to have postdated
he oughtn't to have postdated
we oughtn't to have postdated
you oughtn't to have postdated
they oughtn't to have postdated	I oughtn't to have been postdating
you oughtn't to have been postdating
he oughtn't to have been postdating
we oughtn't to have been postdating
you oughtn't to have been postdating
they oughtn't to have been postdating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I postdate?
ought to you postdate?
ought to he postdate?
ought to we postdate?
ought to you postdate?
ought to they postdate? 	ought to I be postdating?
ought to you be postdating?
ought to he be postdating?
ought to we be postdating?
ought to you be postdating?
ought to they be postdating? 	ought to I have postdated?
ought to you have postdated?
ought to he have postdated?
ought to we have postdated?
ought to you have postdated?
ought to they have postdated? 	ought to I have been postdating?
ought to you have been postdating?
ought to he have been postdating?
ought to we have been postdating?
ought to you have been postdating?
ought to they have been postdating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to postdate?
oughtn't you to postdate?
oughtn't he to postdate?
oughtn't we to postdate?
oughtn't you to postdate?
oughtn't they to postdate? 	oughtn't I to be postdating?
oughtn't you to be postdating?
oughtn't he to be postdating?
oughtn't we to be postdating?
oughtn't you to be postdating?
oughtn't they to be postdating? 	oughtn't I to have postdated?
oughtn't you to have postdated?
oughtn't he to have postdated?
oughtn't we to have postdated?
oughtn't you to have postdated?
oughtn't they to have postdated? 	oughtn't I to have been postdating?
oughtn't you to have been postdating?
oughtn't he to have been postdating?
oughtn't we to have been postdating?
oughtn't you to have been postdating?
oughtn't they to have been postdating?