ought to preexchange
Regular verb: preexchange - preexchanged- preexchanged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to preexchange
you ought to preexchange
he ought to preexchange
we ought to preexchange
you ought to preexchange
they ought to preexchange 	I ought to be preexchanging
you ought to be preexchanging
he ought to be preexchanging
we ought to be preexchanging
you ought to be preexchanging
they ought to be preexchanging	I ought to have preexchanged
you ought to have preexchanged
he ought to have preexchanged
we ought to have preexchanged
you ought to have preexchanged
they ought to have preexchanged	I ought to have been preexchanging
you ought to have been preexchanging
he ought to have been preexchanging
we ought to have been preexchanging
you ought to have been preexchanging
they ought to have been preexchanging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to preexchange
you ought not to preexchange
he ought not to preexchange
we ought not to preexchange
you ought not to preexchange
they ought not to preexchange 	I ought not to preexchanging
you ought not to preexchanging
he ought not to preexchanging
we ought not to preexchanging
you ought not to preexchanging
they ought not to preexchanging	I ought not to have preexchanged
you ought not to have preexchanged
he ought not to have preexchanged
we ought not to have preexchanged
you ought not to have preexchanged
they ought not to have preexchanged	I ought not to have been preexchanging
you ought not to have been preexchanging
he ought not to have been preexchanging
we ought not to have been preexchanging
you ought not to have been preexchanging
they ought not to have been preexchanging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I preexchange?
ought to you preexchange?
ought to he preexchange?
ought to we preexchange?
ought to you preexchange?
ought to they preexchange? 	ought to I be preexchanging?
ought to you be preexchanging?
ought to he be preexchanging?
ought to we be preexchanging?
ought to you be preexchanging?
ought to they be preexchanging? 	ought to I have preexchanged?
ought to you have preexchanged?
ought to he have preexchanged?
ought to we have preexchanged?
ought to you have preexchanged?
ought to they have preexchanged? 	ought to I have been preexchanging?
ought to you have been preexchanging?
ought to he have been preexchanging?
ought to we have been preexchanging?
ought to you have been preexchanging?
ought to they have been preexchanging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to preexchange?
ought you not to preexchange?
ought he not to preexchange?
ought we not to preexchange?
ought you not to preexchange?
ought they not to preexchange? 	ought I not to be preexchanging?
ought you not to be preexchanging?
ought he not to be preexchanging?
ought we not to be preexchanging?
ought you not to be preexchanging?
ought they not to be preexchanging? 	ought I not to have preexchanged?
ought you not to have preexchanged?
ought he not to have preexchanged?
ought we not to have preexchanged?
ought you not to have preexchanged?
ought they not to have preexchanged? 	ought I not to have been preexchanging?
ought you not to have been preexchanging?
ought he not to have been preexchanging?
ought we not to have been preexchanging?
ought you not to have been preexchanging?
ought they not to have been preexchanging?