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 oughtn't to preoccupy
you oughtn't to preoccupy
she oughtn't to preoccupy
we oughtn't to preoccupy
you oughtn't to preoccupy
they oughtn't to preoccupy 	I oughtn't to be preoccupying
you oughtn't to be preoccupying
she oughtn't to be preoccupying
we oughtn't to be preoccupying
you oughtn't to be preoccupying
they oughtn't to be preoccupying	I oughtn't to have preoccupied
you oughtn't to have preoccupied
she oughtn't to have preoccupied
we oughtn't to have preoccupied
you oughtn't to have preoccupied
they oughtn't to have preoccupied	I oughtn't to have been preoccupying
you oughtn't to have been preoccupying
she oughtn't to have been preoccupying
we oughtn't to have been preoccupying
you oughtn't to have been preoccupying
they oughtn't 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 	
oughtn't I to preoccupy?
oughtn't you to preoccupy?
oughtn't she to preoccupy?
oughtn't we to preoccupy?
oughtn't you to preoccupy?
oughtn't they to preoccupy? 	oughtn't I to be preoccupying?
oughtn't you to be preoccupying?
oughtn't she to be preoccupying?
oughtn't we to be preoccupying?
oughtn't you to be preoccupying?
oughtn't they to be preoccupying? 	oughtn't I to have preoccupied?
oughtn't you to have preoccupied?
oughtn't she to have preoccupied?
oughtn't we to have preoccupied?
oughtn't you to have preoccupied?
oughtn't they to have preoccupied? 	oughtn't I to have been preoccupying?
oughtn't you to have been preoccupying?
oughtn't she to have been preoccupying?
oughtn't we to have been preoccupying?
oughtn't you to have been preoccupying?
oughtn't they to have been preoccupying?