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 couldn't scrimp you couldn't scrimp he couldn't scrimp we couldn't scrimp you couldn't scrimp they couldn't scrimp
V-ing form
I couldn't be scrimping you couldn't be scrimping he couldn't be scrimping we couldn't be scrimping you couldn't be scrimping they couldn't be scrimping
Perfect
I couldn't have scrimped you couldn't have scrimped he couldn't have scrimped we couldn't have scrimped you couldn't have scrimped they couldn't have scrimped
V-ing perfect
I couldn't have been scrimping you couldn't have been scrimping he couldn't have been scrimping we couldn't have been scrimping you couldn't have been scrimping they couldn't 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
couldn't I scrimp? couldn't you scrimp? couldn't he scrimp? couldn't we scrimp? couldn't you scrimp? couldn't they scrimp?
V-ing form
couldn't I be scrimping? couldn't you be scrimping? couldn't he be scrimping? couldn't we be scrimping? couldn't you be scrimping? couldn't they be scrimping?
Perfect
couldn't I have scrimped? couldn't you have scrimped? couldn't he have scrimped? couldn't we have scrimped? couldn't you have scrimped? couldn't they have scrimped?
V-ing perfect
couldn't I have been scrimping? couldn't you have been scrimping? couldn't he have been scrimping? couldn't we have been scrimping? couldn't you have been scrimping? couldn't they have been scrimping?