I could scrimp you could scrimp he could scrimp we could scrimp you could scrimp they could scrimp
V-ing form
I could be scrimping you could be scrimping he could be scrimping we could be scrimping you could be scrimping they could be scrimping
Perfect
I could have scrimped you could have scrimped he could have scrimped we could have scrimped you could have scrimped they could have scrimped
V-ing perfect
I could have been scrimping you could have been scrimping he could have been scrimping we could have been scrimping you could have been scrimping they could have been scrimping
Negation
Simple form
I could not scrimp you could not scrimp he could not scrimp we could not scrimp you could not scrimp they could not scrimp
V-ing form
I could not be scrimping you could not be scrimping he could not be scrimping we could not be scrimping you could not be scrimping they could not be scrimping
Perfect
I could not have scrimped you could not have scrimped he could not have scrimped we could not have scrimped you could not have scrimped they could not have scrimped
V-ing perfect
I could not have been scrimping you could not have been scrimping he could not have been scrimping we could not have been scrimping you could not have been scrimping they could not have been scrimping
Interrogative form
Simple form
could I scrimp? could you scrimp? could he scrimp? could we scrimp? could you scrimp? could they scrimp?
V-ing form
could I be scrimping? could you be scrimping? could he be scrimping? could we be scrimping? could you be scrimping? could they be scrimping?
Perfect
could I have scrimped? could you have scrimped? could he have scrimped? could we have scrimped? could you have scrimped? could they have scrimped?
V-ing perfect
could I have been scrimping? could you have been scrimping? could he have been scrimping? could we have been scrimping? could you have been scrimping? could they have been scrimping?
Interro-negative form
Simple form
could I not scrimp? could you not scrimp? could he not scrimp? could we not scrimp? could you not scrimp? could they not scrimp?
V-ing form
could I not be scrimping? could you not be scrimping? could he not be scrimping? could we not be scrimping? could you not be scrimping? could they not be scrimping?
Perfect
could I not have scrimped? could you not have scrimped? could he not have scrimped? could we not have scrimped? could you not have scrimped? could they not have scrimped?
V-ing perfect
could I not have been scrimping? could you not have been scrimping? could he not have been scrimping? could we not have been scrimping? could you not have been scrimping? could they not have been scrimping?