ought to defog
Regular verb: defog - defoged- defoged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to defog
you ought to defog
he ought to defog
we ought to defog
you ought to defog
they ought to defog 	I ought to be defoging
you ought to be defoging
he ought to be defoging
we ought to be defoging
you ought to be defoging
they ought to be defoging	I ought to have defoged
you ought to have defoged
he ought to have defoged
we ought to have defoged
you ought to have defoged
they ought to have defoged	I ought to have been defoging
you ought to have been defoging
he ought to have been defoging
we ought to have been defoging
you ought to have been defoging
they ought to have been defoging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to defog
you ought not to defog
he ought not to defog
we ought not to defog
you ought not to defog
they ought not to defog 	I ought not to defoging
you ought not to defoging
he ought not to defoging
we ought not to defoging
you ought not to defoging
they ought not to defoging	I ought not to have defoged
you ought not to have defoged
he ought not to have defoged
we ought not to have defoged
you ought not to have defoged
they ought not to have defoged	I ought not to have been defoging
you ought not to have been defoging
he ought not to have been defoging
we ought not to have been defoging
you ought not to have been defoging
they ought not to have been defoging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I defog?
ought to you defog?
ought to he defog?
ought to we defog?
ought to you defog?
ought to they defog? 	ought to I be defoging?
ought to you be defoging?
ought to he be defoging?
ought to we be defoging?
ought to you be defoging?
ought to they be defoging? 	ought to I have defoged?
ought to you have defoged?
ought to he have defoged?
ought to we have defoged?
ought to you have defoged?
ought to they have defoged? 	ought to I have been defoging?
ought to you have been defoging?
ought to he have been defoging?
ought to we have been defoging?
ought to you have been defoging?
ought to they have been defoging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to defog?
ought you not to defog?
ought he not to defog?
ought we not to defog?
ought you not to defog?
ought they not to defog? 	ought I not to be defoging?
ought you not to be defoging?
ought he not to be defoging?
ought we not to be defoging?
ought you not to be defoging?
ought they not to be defoging? 	ought I not to have defoged?
ought you not to have defoged?
ought he not to have defoged?
ought we not to have defoged?
ought you not to have defoged?
ought they not to have defoged? 	ought I not to have been defoging?
ought you not to have been defoging?
ought he not to have been defoging?
ought we not to have been defoging?
ought you not to have been defoging?
ought they not to have been defoging?