ought to preexamine
Regular verb: preexamine - preexamined- preexamined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to preexamine
you ought to preexamine
he ought to preexamine
we ought to preexamine
you ought to preexamine
they ought to preexamine 	I ought to be preexamining
you ought to be preexamining
he ought to be preexamining
we ought to be preexamining
you ought to be preexamining
they ought to be preexamining	I ought to have preexamined
you ought to have preexamined
he ought to have preexamined
we ought to have preexamined
you ought to have preexamined
they ought to have preexamined	I ought to have been preexamining
you ought to have been preexamining
he ought to have been preexamining
we ought to have been preexamining
you ought to have been preexamining
they ought to have been preexamining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to preexamine
you oughtn't to preexamine
he oughtn't to preexamine
we oughtn't to preexamine
you oughtn't to preexamine
they oughtn't to preexamine 	I oughtn't to be preexamining
you oughtn't to be preexamining
he oughtn't to be preexamining
we oughtn't to be preexamining
you oughtn't to be preexamining
they oughtn't to be preexamining	I oughtn't to have preexamined
you oughtn't to have preexamined
he oughtn't to have preexamined
we oughtn't to have preexamined
you oughtn't to have preexamined
they oughtn't to have preexamined	I oughtn't to have been preexamining
you oughtn't to have been preexamining
he oughtn't to have been preexamining
we oughtn't to have been preexamining
you oughtn't to have been preexamining
they oughtn't to have been preexamining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I preexamine?
ought to you preexamine?
ought to he preexamine?
ought to we preexamine?
ought to you preexamine?
ought to they preexamine? 	ought to I be preexamining?
ought to you be preexamining?
ought to he be preexamining?
ought to we be preexamining?
ought to you be preexamining?
ought to they be preexamining? 	ought to I have preexamined?
ought to you have preexamined?
ought to he have preexamined?
ought to we have preexamined?
ought to you have preexamined?
ought to they have preexamined? 	ought to I have been preexamining?
ought to you have been preexamining?
ought to he have been preexamining?
ought to we have been preexamining?
ought to you have been preexamining?
ought to they have been preexamining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to preexamine?
oughtn't you to preexamine?
oughtn't he to preexamine?
oughtn't we to preexamine?
oughtn't you to preexamine?
oughtn't they to preexamine? 	oughtn't I to be preexamining?
oughtn't you to be preexamining?
oughtn't he to be preexamining?
oughtn't we to be preexamining?
oughtn't you to be preexamining?
oughtn't they to be preexamining? 	oughtn't I to have preexamined?
oughtn't you to have preexamined?
oughtn't he to have preexamined?
oughtn't we to have preexamined?
oughtn't you to have preexamined?
oughtn't they to have preexamined? 	oughtn't I to have been preexamining?
oughtn't you to have been preexamining?
oughtn't he to have been preexamining?
oughtn't we to have been preexamining?
oughtn't you to have been preexamining?
oughtn't they to have been preexamining?