should attend
Regular verb: attend - attended- attended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should attend
you should attend
she should attend
we should attend
you should attend
they should attend 	I should be attending
you should be attending
she should be attending
we should be attending
you should be attending
they should be attending	I should have attended
you should have attended
she should have attended
we should have attended
you should have attended
they should have attended	I should have been attending
you should have been attending
she should have been attending
we should have been attending
you should have been attending
they should have been attending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not attend
you should not attend
she should not attend
we should not attend
you should not attend
they should not attend 	I should not be attending
you should not be attending
she should not be attending
we should not be attending
you should not be attending
they should not be attending	I should not have attended
you should not have attended
she should not have attended
we should not have attended
you should not have attended
they should not have attended	I should not have been attending
you should not have been attending
she should not have been attending
we should not have been attending
you should not have been attending
they should not have been attending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I attend?
should you attend?
should she attend?
should we attend?
should you attend?
should they attend? 	should I be attending?
should you be attending?
should she be attending?
should we be attending?
should you be attending?
should they be attending? 	should I have attended?
should you have attended?
should she have attended?
should we have attended?
should you have attended?
should they have attended? 	should I have been attending?
should you have been attending?
should she have been attending?
should we have been attending?
should you have been attending?
should they have been attending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not attend?
should you not attend?
should she not attend?
should we not attend?
should you not attend?
should they not attend? 	should I not be attending?
should you not be attending?
should she not be attending?
should we not be attending?
should you not be attending?
should they not be attending? 	should I not have attended?
should you not have attended?
should she not have attended?
should we not have attended?
should you not have attended?
should they not have attended? 	should I not have been attending?
should you not have been attending?
should she not have been attending?
should we not have been attending?
should you not have been attending?
should they not have been attending?