ought to lubricate
Regular verb: lubricate - lubricated- lubricated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to lubricate
you ought to lubricate
he ought to lubricate
we ought to lubricate
you ought to lubricate
they ought to lubricate 	I ought to be lubricating
you ought to be lubricating
he ought to be lubricating
we ought to be lubricating
you ought to be lubricating
they ought to be lubricating	I ought to have lubricated
you ought to have lubricated
he ought to have lubricated
we ought to have lubricated
you ought to have lubricated
they ought to have lubricated	I ought to have been lubricating
you ought to have been lubricating
he ought to have been lubricating
we ought to have been lubricating
you ought to have been lubricating
they ought to have been lubricating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to lubricate
you oughtn't to lubricate
he oughtn't to lubricate
we oughtn't to lubricate
you oughtn't to lubricate
they oughtn't to lubricate 	I oughtn't to be lubricating
you oughtn't to be lubricating
he oughtn't to be lubricating
we oughtn't to be lubricating
you oughtn't to be lubricating
they oughtn't to be lubricating	I oughtn't to have lubricated
you oughtn't to have lubricated
he oughtn't to have lubricated
we oughtn't to have lubricated
you oughtn't to have lubricated
they oughtn't to have lubricated	I oughtn't to have been lubricating
you oughtn't to have been lubricating
he oughtn't to have been lubricating
we oughtn't to have been lubricating
you oughtn't to have been lubricating
they oughtn't to have been lubricating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I lubricate?
ought to you lubricate?
ought to he lubricate?
ought to we lubricate?
ought to you lubricate?
ought to they lubricate? 	ought to I be lubricating?
ought to you be lubricating?
ought to he be lubricating?
ought to we be lubricating?
ought to you be lubricating?
ought to they be lubricating? 	ought to I have lubricated?
ought to you have lubricated?
ought to he have lubricated?
ought to we have lubricated?
ought to you have lubricated?
ought to they have lubricated? 	ought to I have been lubricating?
ought to you have been lubricating?
ought to he have been lubricating?
ought to we have been lubricating?
ought to you have been lubricating?
ought to they have been lubricating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to lubricate?
oughtn't you to lubricate?
oughtn't he to lubricate?
oughtn't we to lubricate?
oughtn't you to lubricate?
oughtn't they to lubricate? 	oughtn't I to be lubricating?
oughtn't you to be lubricating?
oughtn't he to be lubricating?
oughtn't we to be lubricating?
oughtn't you to be lubricating?
oughtn't they to be lubricating? 	oughtn't I to have lubricated?
oughtn't you to have lubricated?
oughtn't he to have lubricated?
oughtn't we to have lubricated?
oughtn't you to have lubricated?
oughtn't they to have lubricated? 	oughtn't I to have been lubricating?
oughtn't you to have been lubricating?
oughtn't he to have been lubricating?
oughtn't we to have been lubricating?
oughtn't you to have been lubricating?
oughtn't they to have been lubricating?