ought to oil
Regular verb: oil - oiled- oiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to oil
you ought to oil
he ought to oil
we ought to oil
you ought to oil
they ought to oil 	I ought to be oiling
you ought to be oiling
he ought to be oiling
we ought to be oiling
you ought to be oiling
they ought to be oiling	I ought to have oiled
you ought to have oiled
he ought to have oiled
we ought to have oiled
you ought to have oiled
they ought to have oiled	I ought to have been oiling
you ought to have been oiling
he ought to have been oiling
we ought to have been oiling
you ought to have been oiling
they ought to have been oiling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to oil
you ought not to oil
he ought not to oil
we ought not to oil
you ought not to oil
they ought not to oil 	I ought not to oiling
you ought not to oiling
he ought not to oiling
we ought not to oiling
you ought not to oiling
they ought not to oiling	I ought not to have oiled
you ought not to have oiled
he ought not to have oiled
we ought not to have oiled
you ought not to have oiled
they ought not to have oiled	I ought not to have been oiling
you ought not to have been oiling
he ought not to have been oiling
we ought not to have been oiling
you ought not to have been oiling
they ought not to have been oiling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I oil?
ought to you oil?
ought to he oil?
ought to we oil?
ought to you oil?
ought to they oil? 	ought to I be oiling?
ought to you be oiling?
ought to he be oiling?
ought to we be oiling?
ought to you be oiling?
ought to they be oiling? 	ought to I have oiled?
ought to you have oiled?
ought to he have oiled?
ought to we have oiled?
ought to you have oiled?
ought to they have oiled? 	ought to I have been oiling?
ought to you have been oiling?
ought to he have been oiling?
ought to we have been oiling?
ought to you have been oiling?
ought to they have been oiling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to oil?
ought you not to oil?
ought he not to oil?
ought we not to oil?
ought you not to oil?
ought they not to oil? 	ought I not to be oiling?
ought you not to be oiling?
ought he not to be oiling?
ought we not to be oiling?
ought you not to be oiling?
ought they not to be oiling? 	ought I not to have oiled?
ought you not to have oiled?
ought he not to have oiled?
ought we not to have oiled?
ought you not to have oiled?
ought they not to have oiled? 	ought I not to have been oiling?
ought you not to have been oiling?
ought he not to have been oiling?
ought we not to have been oiling?
ought you not to have been oiling?
ought they not to have been oiling?