ought to fend
Regular verb: fend - fended- fended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to fend
you ought to fend
he ought to fend
we ought to fend
you ought to fend
they ought to fend 	I ought to be fending
you ought to be fending
he ought to be fending
we ought to be fending
you ought to be fending
they ought to be fending	I ought to have fended
you ought to have fended
he ought to have fended
we ought to have fended
you ought to have fended
they ought to have fended	I ought to have been fending
you ought to have been fending
he ought to have been fending
we ought to have been fending
you ought to have been fending
they ought to have been fending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to fend
you oughtn't to fend
he oughtn't to fend
we oughtn't to fend
you oughtn't to fend
they oughtn't to fend 	I oughtn't to be fending
you oughtn't to be fending
he oughtn't to be fending
we oughtn't to be fending
you oughtn't to be fending
they oughtn't to be fending	I oughtn't to have fended
you oughtn't to have fended
he oughtn't to have fended
we oughtn't to have fended
you oughtn't to have fended
they oughtn't to have fended	I oughtn't to have been fending
you oughtn't to have been fending
he oughtn't to have been fending
we oughtn't to have been fending
you oughtn't to have been fending
they oughtn't to have been fending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I fend?
ought to you fend?
ought to he fend?
ought to we fend?
ought to you fend?
ought to they fend? 	ought to I be fending?
ought to you be fending?
ought to he be fending?
ought to we be fending?
ought to you be fending?
ought to they be fending? 	ought to I have fended?
ought to you have fended?
ought to he have fended?
ought to we have fended?
ought to you have fended?
ought to they have fended? 	ought to I have been fending?
ought to you have been fending?
ought to he have been fending?
ought to we have been fending?
ought to you have been fending?
ought to they have been fending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to fend?
oughtn't you to fend?
oughtn't he to fend?
oughtn't we to fend?
oughtn't you to fend?
oughtn't they to fend? 	oughtn't I to be fending?
oughtn't you to be fending?
oughtn't he to be fending?
oughtn't we to be fending?
oughtn't you to be fending?
oughtn't they to be fending? 	oughtn't I to have fended?
oughtn't you to have fended?
oughtn't he to have fended?
oughtn't we to have fended?
oughtn't you to have fended?
oughtn't they to have fended? 	oughtn't I to have been fending?
oughtn't you to have been fending?
oughtn't he to have been fending?
oughtn't we to have been fending?
oughtn't you to have been fending?
oughtn't they to have been fending?