ought to unstrap
Regular verb: unstrap - unstrapped- unstrapped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to unstrap
you ought to unstrap
he ought to unstrap
we ought to unstrap
you ought to unstrap
they ought to unstrap 	I ought to be unstrapping
you ought to be unstrapping
he ought to be unstrapping
we ought to be unstrapping
you ought to be unstrapping
they ought to be unstrapping	I ought to have unstrapped
you ought to have unstrapped
he ought to have unstrapped
we ought to have unstrapped
you ought to have unstrapped
they ought to have unstrapped	I ought to have been unstrapping
you ought to have been unstrapping
he ought to have been unstrapping
we ought to have been unstrapping
you ought to have been unstrapping
they ought to have been unstrapping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to unstrap
you ought not to unstrap
he ought not to unstrap
we ought not to unstrap
you ought not to unstrap
they ought not to unstrap 	I ought not to unstrapping
you ought not to unstrapping
he ought not to unstrapping
we ought not to unstrapping
you ought not to unstrapping
they ought not to unstrapping	I ought not to have unstrapped
you ought not to have unstrapped
he ought not to have unstrapped
we ought not to have unstrapped
you ought not to have unstrapped
they ought not to have unstrapped	I ought not to have been unstrapping
you ought not to have been unstrapping
he ought not to have been unstrapping
we ought not to have been unstrapping
you ought not to have been unstrapping
they ought not to have been unstrapping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I unstrap?
ought to you unstrap?
ought to he unstrap?
ought to we unstrap?
ought to you unstrap?
ought to they unstrap? 	ought to I be unstrapping?
ought to you be unstrapping?
ought to he be unstrapping?
ought to we be unstrapping?
ought to you be unstrapping?
ought to they be unstrapping? 	ought to I have unstrapped?
ought to you have unstrapped?
ought to he have unstrapped?
ought to we have unstrapped?
ought to you have unstrapped?
ought to they have unstrapped? 	ought to I have been unstrapping?
ought to you have been unstrapping?
ought to he have been unstrapping?
ought to we have been unstrapping?
ought to you have been unstrapping?
ought to they have been unstrapping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to unstrap?
ought you not to unstrap?
ought he not to unstrap?
ought we not to unstrap?
ought you not to unstrap?
ought they not to unstrap? 	ought I not to be unstrapping?
ought you not to be unstrapping?
ought he not to be unstrapping?
ought we not to be unstrapping?
ought you not to be unstrapping?
ought they not to be unstrapping? 	ought I not to have unstrapped?
ought you not to have unstrapped?
ought he not to have unstrapped?
ought we not to have unstrapped?
ought you not to have unstrapped?
ought they not to have unstrapped? 	ought I not to have been unstrapping?
ought you not to have been unstrapping?
ought he not to have been unstrapping?
ought we not to have been unstrapping?
ought you not to have been unstrapping?
ought they not to have been unstrapping?