should forget
Irregular verb: forget - forgot- forgotten

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should forget
you should forget
she should forget
we should forget
you should forget
they should forget 	I should be forgetting
you should be forgetting
she should be forgetting
we should be forgetting
you should be forgetting
they should be forgetting	I should have forgotten
you should have forgotten
she should have forgotten
we should have forgotten
you should have forgotten
they should have forgotten	I should have been forgetting
you should have been forgetting
she should have been forgetting
we should have been forgetting
you should have been forgetting
they should have been forgetting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not forget
you should not forget
she should not forget
we should not forget
you should not forget
they should not forget 	I should not be forgetting
you should not be forgetting
she should not be forgetting
we should not be forgetting
you should not be forgetting
they should not be forgetting	I should not have forgotten
you should not have forgotten
she should not have forgotten
we should not have forgotten
you should not have forgotten
they should not have forgotten	I should not have been forgetting
you should not have been forgetting
she should not have been forgetting
we should not have been forgetting
you should not have been forgetting
they should not have been forgetting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I forget?
should you forget?
should she forget?
should we forget?
should you forget?
should they forget? 	should I be forgetting?
should you be forgetting?
should she be forgetting?
should we be forgetting?
should you be forgetting?
should they be forgetting? 	should I have forgotten?
should you have forgotten?
should she have forgotten?
should we have forgotten?
should you have forgotten?
should they have forgotten? 	should I have been forgetting?
should you have been forgetting?
should she have been forgetting?
should we have been forgetting?
should you have been forgetting?
should they have been forgetting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not forget?
should you not forget?
should she not forget?
should we not forget?
should you not forget?
should they not forget? 	should I not be forgetting?
should you not be forgetting?
should she not be forgetting?
should we not be forgetting?
should you not be forgetting?
should they not be forgetting? 	should I not have forgotten?
should you not have forgotten?
should she not have forgotten?
should we not have forgotten?
should you not have forgotten?
should they not have forgotten? 	should I not have been forgetting?
should you not have been forgetting?
should she not have been forgetting?
should we not have been forgetting?
should you not have been forgetting?
should they not have been forgetting?