ought to preoccupy
Regular verb: preoccupy - preoccupied- preoccupied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to preoccupy
you ought to preoccupy
she ought to preoccupy
we ought to preoccupy
you ought to preoccupy
they ought to preoccupy 	I ought to be preoccupying
you ought to be preoccupying
she ought to be preoccupying
we ought to be preoccupying
you ought to be preoccupying
they ought to be preoccupying	I ought to have preoccupied
you ought to have preoccupied
she ought to have preoccupied
we ought to have preoccupied
you ought to have preoccupied
they ought to have preoccupied	I ought to have been preoccupying
you ought to have been preoccupying
she ought to have been preoccupying
we ought to have been preoccupying
you ought to have been preoccupying
they ought to have been preoccupying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought not to preoccupy
you ought not to preoccupy
she ought not to preoccupy
we ought not to preoccupy
you ought not to preoccupy
they ought not to preoccupy 	I ought not to preoccupying
you ought not to preoccupying
she ought not to preoccupying
we ought not to preoccupying
you ought not to preoccupying
they ought not to preoccupying	I ought not to have preoccupied
you ought not to have preoccupied
she ought not to have preoccupied
we ought not to have preoccupied
you ought not to have preoccupied
they ought not to have preoccupied	I ought not to have been preoccupying
you ought not to have been preoccupying
she ought not to have been preoccupying
we ought not to have been preoccupying
you ought not to have been preoccupying
they ought not to have been preoccupying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I preoccupy?
ought to you preoccupy?
ought to she preoccupy?
ought to we preoccupy?
ought to you preoccupy?
ought to they preoccupy? 	ought to I be preoccupying?
ought to you be preoccupying?
ought to she be preoccupying?
ought to we be preoccupying?
ought to you be preoccupying?
ought to they be preoccupying? 	ought to I have preoccupied?
ought to you have preoccupied?
ought to she have preoccupied?
ought to we have preoccupied?
ought to you have preoccupied?
ought to they have preoccupied? 	ought to I have been preoccupying?
ought to you have been preoccupying?
ought to she have been preoccupying?
ought to we have been preoccupying?
ought to you have been preoccupying?
ought to they have been preoccupying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought I not to preoccupy?
ought you not to preoccupy?
ought she not to preoccupy?
ought we not to preoccupy?
ought you not to preoccupy?
ought they not to preoccupy? 	ought I not to be preoccupying?
ought you not to be preoccupying?
ought she not to be preoccupying?
ought we not to be preoccupying?
ought you not to be preoccupying?
ought they not to be preoccupying? 	ought I not to have preoccupied?
ought you not to have preoccupied?
ought she not to have preoccupied?
ought we not to have preoccupied?
ought you not to have preoccupied?
ought they not to have preoccupied? 	ought I not to have been preoccupying?
ought you not to have been preoccupying?
ought she not to have been preoccupying?
ought we not to have been preoccupying?
ought you not to have been preoccupying?
ought they not to have been preoccupying?