ought to collaborate
Regular verb: collaborate - collaborated- collaborated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to collaborate
you ought to collaborate
he ought to collaborate
we ought to collaborate
you ought to collaborate
they ought to collaborate 	I ought to be collaborating
you ought to be collaborating
he ought to be collaborating
we ought to be collaborating
you ought to be collaborating
they ought to be collaborating	I ought to have collaborated
you ought to have collaborated
he ought to have collaborated
we ought to have collaborated
you ought to have collaborated
they ought to have collaborated	I ought to have been collaborating
you ought to have been collaborating
he ought to have been collaborating
we ought to have been collaborating
you ought to have been collaborating
they ought to have been collaborating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to collaborate
you oughtn't to collaborate
he oughtn't to collaborate
we oughtn't to collaborate
you oughtn't to collaborate
they oughtn't to collaborate 	I oughtn't to be collaborating
you oughtn't to be collaborating
he oughtn't to be collaborating
we oughtn't to be collaborating
you oughtn't to be collaborating
they oughtn't to be collaborating	I oughtn't to have collaborated
you oughtn't to have collaborated
he oughtn't to have collaborated
we oughtn't to have collaborated
you oughtn't to have collaborated
they oughtn't to have collaborated	I oughtn't to have been collaborating
you oughtn't to have been collaborating
he oughtn't to have been collaborating
we oughtn't to have been collaborating
you oughtn't to have been collaborating
they oughtn't to have been collaborating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I collaborate?
ought to you collaborate?
ought to he collaborate?
ought to we collaborate?
ought to you collaborate?
ought to they collaborate? 	ought to I be collaborating?
ought to you be collaborating?
ought to he be collaborating?
ought to we be collaborating?
ought to you be collaborating?
ought to they be collaborating? 	ought to I have collaborated?
ought to you have collaborated?
ought to he have collaborated?
ought to we have collaborated?
ought to you have collaborated?
ought to they have collaborated? 	ought to I have been collaborating?
ought to you have been collaborating?
ought to he have been collaborating?
ought to we have been collaborating?
ought to you have been collaborating?
ought to they have been collaborating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to collaborate?
oughtn't you to collaborate?
oughtn't he to collaborate?
oughtn't we to collaborate?
oughtn't you to collaborate?
oughtn't they to collaborate? 	oughtn't I to be collaborating?
oughtn't you to be collaborating?
oughtn't he to be collaborating?
oughtn't we to be collaborating?
oughtn't you to be collaborating?
oughtn't they to be collaborating? 	oughtn't I to have collaborated?
oughtn't you to have collaborated?
oughtn't he to have collaborated?
oughtn't we to have collaborated?
oughtn't you to have collaborated?
oughtn't they to have collaborated? 	oughtn't I to have been collaborating?
oughtn't you to have been collaborating?
oughtn't he to have been collaborating?
oughtn't we to have been collaborating?
oughtn't you to have been collaborating?
oughtn't they to have been collaborating?