I could pulp you could pulp he could pulp we could pulp you could pulp they could pulp
V-ing form
I could be pulping you could be pulping he could be pulping we could be pulping you could be pulping they could be pulping
Perfect
I could have pulped you could have pulped he could have pulped we could have pulped you could have pulped they could have pulped
V-ing perfect
I could have been pulping you could have been pulping he could have been pulping we could have been pulping you could have been pulping they could have been pulping
Negation
Simple form
I couldn't pulp you couldn't pulp he couldn't pulp we couldn't pulp you couldn't pulp they couldn't pulp
V-ing form
I couldn't be pulping you couldn't be pulping he couldn't be pulping we couldn't be pulping you couldn't be pulping they couldn't be pulping
Perfect
I couldn't have pulped you couldn't have pulped he couldn't have pulped we couldn't have pulped you couldn't have pulped they couldn't have pulped
V-ing perfect
I couldn't have been pulping you couldn't have been pulping he couldn't have been pulping we couldn't have been pulping you couldn't have been pulping they couldn't have been pulping
Interrogative form
Simple form
could I pulp? could you pulp? could he pulp? could we pulp? could you pulp? could they pulp?
V-ing form
could I be pulping? could you be pulping? could he be pulping? could we be pulping? could you be pulping? could they be pulping?
Perfect
could I have pulped? could you have pulped? could he have pulped? could we have pulped? could you have pulped? could they have pulped?
V-ing perfect
could I have been pulping? could you have been pulping? could he have been pulping? could we have been pulping? could you have been pulping? could they have been pulping?
Interro-negative form
Simple form
couldn't I pulp? couldn't you pulp? couldn't he pulp? couldn't we pulp? couldn't you pulp? couldn't they pulp?
V-ing form
couldn't I be pulping? couldn't you be pulping? couldn't he be pulping? couldn't we be pulping? couldn't you be pulping? couldn't they be pulping?
Perfect
couldn't I have pulped? couldn't you have pulped? couldn't he have pulped? couldn't we have pulped? couldn't you have pulped? couldn't they have pulped?
V-ing perfect
couldn't I have been pulping? couldn't you have been pulping? couldn't he have been pulping? couldn't we have been pulping? couldn't you have been pulping? couldn't they have been pulping?