English verb conjugation
SHOULD PREOCCUPY

Regular verb: preoccupy - preoccupied - preoccupied

Affirmation

Simple form	V-ing form
I should preoccupy you should preoccupy he should preoccupy we should preoccupy you should preoccupy they should preoccupy	I should be preoccupying you should be preoccupying he should be preoccupying we should be preoccupying you should be preoccupying they should be preoccupying
Perfect	V-ing perfect
I should have preoccupied you should have preoccupied he should have preoccupied we should have preoccupied you should have preoccupied they should have preoccupied	I should have been preoccupying you should have been preoccupying he should have been preoccupying we should have been preoccupying you should have been preoccupying they should have been preoccupying

Negation

Simple form	V-ing form
I should not preoccupy you should not preoccupy he should not preoccupy we should not preoccupy you should not preoccupy they should not preoccupy	I should not be preoccupying you should not be preoccupying he should not be preoccupying we should not be preoccupying you should not be preoccupying they should not be preoccupying
Perfect	V-ing perfect
I should not have preoccupied you should not have preoccupied he should not have preoccupied we should not have preoccupied you should not have preoccupied they should not have preoccupied	I should not have been preoccupying you should not have been preoccupying he should not have been preoccupying we should not have been preoccupying you should not have been preoccupying they should not have been preoccupying

Interrogative form

Simple form	V-ing form
should I preoccupy? should you preoccupy? should he preoccupy? should we preoccupy? should you preoccupy? should they preoccupy?	should I be preoccupying? should you be preoccupying? should he be preoccupying? should we be preoccupying? should you be preoccupying? should they be preoccupying?
Perfect	V-ing perfect
should I have preoccupied? should you have preoccupied? should he have preoccupied? should we have preoccupied? should you have preoccupied? should they have preoccupied?	should I have been preoccupying? should you have been preoccupying? should he have been preoccupying? should we have been preoccupying? should you have been preoccupying? should they have been preoccupying?

Interro-negative form

Simple form	V-ing form
should I not preoccupy? should you not preoccupy? should he not preoccupy? should we not preoccupy? should you not preoccupy? should they not preoccupy?	should I not be preoccupying? should you not be preoccupying? should he not be preoccupying? should we not be preoccupying? should you not be preoccupying? should they not be preoccupying?
Perfect	V-ing perfect
should I not have preoccupied? should you not have preoccupied? should he not have preoccupied? should we not have preoccupied? should you not have preoccupied? should they not have preoccupied?	should I not have been preoccupying? should you not have been preoccupying? should he not have been preoccupying? should we not have been preoccupying? should you not have been preoccupying? should they not have been preoccupying?