should focus
Regular verb: focus - focused- focused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should focus
you should focus
she should focus
we should focus
you should focus
they should focus 	I should be focusing
you should be focusing
she should be focusing
we should be focusing
you should be focusing
they should be focusing	I should have focused
you should have focused
she should have focused
we should have focused
you should have focused
they should have focused	I should have been focusing
you should have been focusing
she should have been focusing
we should have been focusing
you should have been focusing
they should have been focusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not focus
you should not focus
she should not focus
we should not focus
you should not focus
they should not focus 	I should not be focusing
you should not be focusing
she should not be focusing
we should not be focusing
you should not be focusing
they should not be focusing	I should not have focused
you should not have focused
she should not have focused
we should not have focused
you should not have focused
they should not have focused	I should not have been focusing
you should not have been focusing
she should not have been focusing
we should not have been focusing
you should not have been focusing
they should not have been focusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I focus?
should you focus?
should she focus?
should we focus?
should you focus?
should they focus? 	should I be focusing?
should you be focusing?
should she be focusing?
should we be focusing?
should you be focusing?
should they be focusing? 	should I have focused?
should you have focused?
should she have focused?
should we have focused?
should you have focused?
should they have focused? 	should I have been focusing?
should you have been focusing?
should she have been focusing?
should we have been focusing?
should you have been focusing?
should they have been focusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not focus?
should you not focus?
should she not focus?
should we not focus?
should you not focus?
should they not focus? 	should I not be focusing?
should you not be focusing?
should she not be focusing?
should we not be focusing?
should you not be focusing?
should they not be focusing? 	should I not have focused?
should you not have focused?
should she not have focused?
should we not have focused?
should you not have focused?
should they not have focused? 	should I not have been focusing?
should you not have been focusing?
should she not have been focusing?
should we not have been focusing?
should you not have been focusing?
should they not have been focusing?