ought to fortify
Regular verb: fortify - fortified- fortified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to fortify
you ought to fortify
he ought to fortify
we ought to fortify
you ought to fortify
they ought to fortify 	I ought to be fortifying
you ought to be fortifying
he ought to be fortifying
we ought to be fortifying
you ought to be fortifying
they ought to be fortifying	I ought to have fortified
you ought to have fortified
he ought to have fortified
we ought to have fortified
you ought to have fortified
they ought to have fortified	I ought to have been fortifying
you ought to have been fortifying
he ought to have been fortifying
we ought to have been fortifying
you ought to have been fortifying
they ought to have been fortifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to fortify
you oughtn't to fortify
he oughtn't to fortify
we oughtn't to fortify
you oughtn't to fortify
they oughtn't to fortify 	I oughtn't to be fortifying
you oughtn't to be fortifying
he oughtn't to be fortifying
we oughtn't to be fortifying
you oughtn't to be fortifying
they oughtn't to be fortifying	I oughtn't to have fortified
you oughtn't to have fortified
he oughtn't to have fortified
we oughtn't to have fortified
you oughtn't to have fortified
they oughtn't to have fortified	I oughtn't to have been fortifying
you oughtn't to have been fortifying
he oughtn't to have been fortifying
we oughtn't to have been fortifying
you oughtn't to have been fortifying
they oughtn't to have been fortifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I fortify?
ought to you fortify?
ought to he fortify?
ought to we fortify?
ought to you fortify?
ought to they fortify? 	ought to I be fortifying?
ought to you be fortifying?
ought to he be fortifying?
ought to we be fortifying?
ought to you be fortifying?
ought to they be fortifying? 	ought to I have fortified?
ought to you have fortified?
ought to he have fortified?
ought to we have fortified?
ought to you have fortified?
ought to they have fortified? 	ought to I have been fortifying?
ought to you have been fortifying?
ought to he have been fortifying?
ought to we have been fortifying?
ought to you have been fortifying?
ought to they have been fortifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to fortify?
oughtn't you to fortify?
oughtn't he to fortify?
oughtn't we to fortify?
oughtn't you to fortify?
oughtn't they to fortify? 	oughtn't I to be fortifying?
oughtn't you to be fortifying?
oughtn't he to be fortifying?
oughtn't we to be fortifying?
oughtn't you to be fortifying?
oughtn't they to be fortifying? 	oughtn't I to have fortified?
oughtn't you to have fortified?
oughtn't he to have fortified?
oughtn't we to have fortified?
oughtn't you to have fortified?
oughtn't they to have fortified? 	oughtn't I to have been fortifying?
oughtn't you to have been fortifying?
oughtn't he to have been fortifying?
oughtn't we to have been fortifying?
oughtn't you to have been fortifying?
oughtn't they to have been fortifying?