ought to contend
Regular verb: contend - contended- contended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to contend
you ought to contend
he ought to contend
we ought to contend
you ought to contend
they ought to contend 	I ought to be contending
you ought to be contending
he ought to be contending
we ought to be contending
you ought to be contending
they ought to be contending	I ought to have contended
you ought to have contended
he ought to have contended
we ought to have contended
you ought to have contended
they ought to have contended	I ought to have been contending
you ought to have been contending
he ought to have been contending
we ought to have been contending
you ought to have been contending
they ought to have been contending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to contend
you ought not to contend
he ought not to contend
we ought not to contend
you ought not to contend
they ought not to contend 	I ought not to contending
you ought not to contending
he ought not to contending
we ought not to contending
you ought not to contending
they ought not to contending	I ought not to have contended
you ought not to have contended
he ought not to have contended
we ought not to have contended
you ought not to have contended
they ought not to have contended	I ought not to have been contending
you ought not to have been contending
he ought not to have been contending
we ought not to have been contending
you ought not to have been contending
they ought not to have been contending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I contend?
ought to you contend?
ought to he contend?
ought to we contend?
ought to you contend?
ought to they contend? 	ought to I be contending?
ought to you be contending?
ought to he be contending?
ought to we be contending?
ought to you be contending?
ought to they be contending? 	ought to I have contended?
ought to you have contended?
ought to he have contended?
ought to we have contended?
ought to you have contended?
ought to they have contended? 	ought to I have been contending?
ought to you have been contending?
ought to he have been contending?
ought to we have been contending?
ought to you have been contending?
ought to they have been contending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to contend?
ought you not to contend?
ought he not to contend?
ought we not to contend?
ought you not to contend?
ought they not to contend? 	ought I not to be contending?
ought you not to be contending?
ought he not to be contending?
ought we not to be contending?
ought you not to be contending?
ought they not to be contending? 	ought I not to have contended?
ought you not to have contended?
ought he not to have contended?
ought we not to have contended?
ought you not to have contended?
ought they not to have contended? 	ought I not to have been contending?
ought you not to have been contending?
ought he not to have been contending?
ought we not to have been contending?
ought you not to have been contending?
ought they not to have been contending?