should look
Regular verb: look - looked- looked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should look
you should look
she should look
we should look
you should look
they should look 	I should be looking
you should be looking
she should be looking
we should be looking
you should be looking
they should be looking	I should have looked
you should have looked
she should have looked
we should have looked
you should have looked
they should have looked	I should have been looking
you should have been looking
she should have been looking
we should have been looking
you should have been looking
they should have been looking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not look
you should not look
she should not look
we should not look
you should not look
they should not look 	I should not be looking
you should not be looking
she should not be looking
we should not be looking
you should not be looking
they should not be looking	I should not have looked
you should not have looked
she should not have looked
we should not have looked
you should not have looked
they should not have looked	I should not have been looking
you should not have been looking
she should not have been looking
we should not have been looking
you should not have been looking
they should not have been looking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I look?
should you look?
should she look?
should we look?
should you look?
should they look? 	should I be looking?
should you be looking?
should she be looking?
should we be looking?
should you be looking?
should they be looking? 	should I have looked?
should you have looked?
should she have looked?
should we have looked?
should you have looked?
should they have looked? 	should I have been looking?
should you have been looking?
should she have been looking?
should we have been looking?
should you have been looking?
should they have been looking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not look?
should you not look?
should she not look?
should we not look?
should you not look?
should they not look? 	should I not be looking?
should you not be looking?
should she not be looking?
should we not be looking?
should you not be looking?
should they not be looking? 	should I not have looked?
should you not have looked?
should she not have looked?
should we not have looked?
should you not have looked?
should they not have looked? 	should I not have been looking?
should you not have been looking?
should she not have been looking?
should we not have been looking?
should you not have been looking?
should they not have been looking?