should lump
Regular verb: lump - lumped- lumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should lump
you should lump
she should lump
we should lump
you should lump
they should lump 	I should be lumping
you should be lumping
she should be lumping
we should be lumping
you should be lumping
they should be lumping	I should have lumped
you should have lumped
she should have lumped
we should have lumped
you should have lumped
they should have lumped	I should have been lumping
you should have been lumping
she should have been lumping
we should have been lumping
you should have been lumping
they should have been lumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not lump
you should not lump
she should not lump
we should not lump
you should not lump
they should not lump 	I should not be lumping
you should not be lumping
she should not be lumping
we should not be lumping
you should not be lumping
they should not be lumping	I should not have lumped
you should not have lumped
she should not have lumped
we should not have lumped
you should not have lumped
they should not have lumped	I should not have been lumping
you should not have been lumping
she should not have been lumping
we should not have been lumping
you should not have been lumping
they should not have been lumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I lump?
should you lump?
should she lump?
should we lump?
should you lump?
should they lump? 	should I be lumping?
should you be lumping?
should she be lumping?
should we be lumping?
should you be lumping?
should they be lumping? 	should I have lumped?
should you have lumped?
should she have lumped?
should we have lumped?
should you have lumped?
should they have lumped? 	should I have been lumping?
should you have been lumping?
should she have been lumping?
should we have been lumping?
should you have been lumping?
should they have been lumping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not lump?
should you not lump?
should she not lump?
should we not lump?
should you not lump?
should they not lump? 	should I not be lumping?
should you not be lumping?
should she not be lumping?
should we not be lumping?
should you not be lumping?
should they not be lumping? 	should I not have lumped?
should you not have lumped?
should she not have lumped?
should we not have lumped?
should you not have lumped?
should they not have lumped? 	should I not have been lumping?
should you not have been lumping?
should she not have been lumping?
should we not have been lumping?
should you not have been lumping?
should they not have been lumping?