should lump
Regular verb: lump - lumped- lumped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd lump
you'd lump
he'd lump
we'd lump
you'd lump
they'd lump 	I'd be lumping
you'd be lumping
he'd be lumping
we'd be lumping
you'd be lumping
they'd be lumping	I should've lumped
you should've lumped
he should've lumped
we should've lumped
you should've lumped
they should've lumped	I should've been lumping
you should've been lumping
he should've been lumping
we should've been lumping
you should've been lumping
they should've been lumping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't lump
you shouldn't lump
he shouldn't lump
we shouldn't lump
you shouldn't lump
they shouldn't lump 	I shouldn't be lumping
you shouldn't be lumping
he shouldn't be lumping
we shouldn't be lumping
you shouldn't be lumping
they shouldn't be lumping	I shouldn't have lumped
you shouldn't have lumped
he shouldn't have lumped
we shouldn't have lumped
you shouldn't have lumped
they shouldn't have lumped	I shouldn't have been lumping
you shouldn't have been lumping
he shouldn't have been lumping
we shouldn't have been lumping
you shouldn't have been lumping
they shouldn't have been lumping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I lump?
should you lump?
should he lump?
should we lump?
should you lump?
should they lump? 	should I be lumping?
should you be lumping?
should he be lumping?
should we be lumping?
should you be lumping?
should they be lumping? 	should I have lumped?
should you have lumped?
should he 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 he 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 	
shouldn't I lump?
shouldn't you lump?
shouldn't he lump?
shouldn't we lump?
shouldn't you lump?
shouldn't they lump? 	shouldn't I be lumping?
shouldn't you be lumping?
shouldn't he be lumping?
shouldn't we be lumping?
shouldn't you be lumping?
shouldn't they be lumping? 	shouldn't I have lumped?
shouldn't you have lumped?
shouldn't he have lumped?
shouldn't we have lumped?
shouldn't you have lumped?
shouldn't they have lumped? 	shouldn't I have been lumping?
shouldn't you have been lumping?
shouldn't he have been lumping?
shouldn't we have been lumping?
shouldn't you have been lumping?
shouldn't they have been lumping?