should staff
Regular verb: staff - staffed- staffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should staff
you should staff
he should staff
we should staff
you should staff
they should staff 	I should be staffing
you should be staffing
he should be staffing
we should be staffing
you should be staffing
they should be staffing	I should have staffed
you should have staffed
he should have staffed
we should have staffed
you should have staffed
they should have staffed	I should have been staffing
you should have been staffing
he should have been staffing
we should have been staffing
you should have been staffing
they should have been staffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not staff
you should not staff
he should not staff
we should not staff
you should not staff
they should not staff 	I should not be staffing
you should not be staffing
he should not be staffing
we should not be staffing
you should not be staffing
they should not be staffing	I should not have staffed
you should not have staffed
he should not have staffed
we should not have staffed
you should not have staffed
they should not have staffed	I should not have been staffing
you should not have been staffing
he should not have been staffing
we should not have been staffing
you should not have been staffing
they should not have been staffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I staff?
should you staff?
should he staff?
should we staff?
should you staff?
should they staff? 	should I be staffing?
should you be staffing?
should he be staffing?
should we be staffing?
should you be staffing?
should they be staffing? 	should I have staffed?
should you have staffed?
should he have staffed?
should we have staffed?
should you have staffed?
should they have staffed? 	should I have been staffing?
should you have been staffing?
should he have been staffing?
should we have been staffing?
should you have been staffing?
should they have been staffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not staff?
should you not staff?
should he not staff?
should we not staff?
should you not staff?
should they not staff? 	should I not be staffing?
should you not be staffing?
should he not be staffing?
should we not be staffing?
should you not be staffing?
should they not be staffing? 	should I not have staffed?
should you not have staffed?
should he not have staffed?
should we not have staffed?
should you not have staffed?
should they not have staffed? 	should I not have been staffing?
should you not have been staffing?
should he not have been staffing?
should we not have been staffing?
should you not have been staffing?
should they not have been staffing?