should last
Regular verb: last - lasted- lasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should last
you should last
he should last
we should last
you should last
they should last 	I should be lasting
you should be lasting
he should be lasting
we should be lasting
you should be lasting
they should be lasting	I should have lasted
you should have lasted
he should have lasted
we should have lasted
you should have lasted
they should have lasted	I should have been lasting
you should have been lasting
he should have been lasting
we should have been lasting
you should have been lasting
they should have been lasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not last
you should not last
he should not last
we should not last
you should not last
they should not last 	I should not be lasting
you should not be lasting
he should not be lasting
we should not be lasting
you should not be lasting
they should not be lasting	I should not have lasted
you should not have lasted
he should not have lasted
we should not have lasted
you should not have lasted
they should not have lasted	I should not have been lasting
you should not have been lasting
he should not have been lasting
we should not have been lasting
you should not have been lasting
they should not have been lasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I last?
should you last?
should he last?
should we last?
should you last?
should they last? 	should I be lasting?
should you be lasting?
should he be lasting?
should we be lasting?
should you be lasting?
should they be lasting? 	should I have lasted?
should you have lasted?
should he have lasted?
should we have lasted?
should you have lasted?
should they have lasted? 	should I have been lasting?
should you have been lasting?
should he have been lasting?
should we have been lasting?
should you have been lasting?
should they have been lasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not last?
should you not last?
should he not last?
should we not last?
should you not last?
should they not last? 	should I not be lasting?
should you not be lasting?
should he not be lasting?
should we not be lasting?
should you not be lasting?
should they not be lasting? 	should I not have lasted?
should you not have lasted?
should he not have lasted?
should we not have lasted?
should you not have lasted?
should they not have lasted? 	should I not have been lasting?
should you not have been lasting?
should he not have been lasting?
should we not have been lasting?
should you not have been lasting?
should they not have been lasting?