I could purse-seine you could purse-seine he could purse-seine we could purse-seine you could purse-seine they could purse-seine
V-ing form
I could be purse-seining you could be purse-seining he could be purse-seining we could be purse-seining you could be purse-seining they could be purse-seining
Perfect
I could have purse-seined you could have purse-seined he could have purse-seined we could have purse-seined you could have purse-seined they could have purse-seined
V-ing perfect
I could have been purse-seining you could have been purse-seining he could have been purse-seining we could have been purse-seining you could have been purse-seining they could have been purse-seining
Negation
Simple form
I could not purse-seine you could not purse-seine he could not purse-seine we could not purse-seine you could not purse-seine they could not purse-seine
V-ing form
I could not be purse-seining you could not be purse-seining he could not be purse-seining we could not be purse-seining you could not be purse-seining they could not be purse-seining
Perfect
I could not have purse-seined you could not have purse-seined he could not have purse-seined we could not have purse-seined you could not have purse-seined they could not have purse-seined
V-ing perfect
I could not have been purse-seining you could not have been purse-seining he could not have been purse-seining we could not have been purse-seining you could not have been purse-seining they could not have been purse-seining
Interrogative form
Simple form
could I purse-seine? could you purse-seine? could he purse-seine? could we purse-seine? could you purse-seine? could they purse-seine?
V-ing form
could I be purse-seining? could you be purse-seining? could he be purse-seining? could we be purse-seining? could you be purse-seining? could they be purse-seining?
Perfect
could I have purse-seined? could you have purse-seined? could he have purse-seined? could we have purse-seined? could you have purse-seined? could they have purse-seined?
V-ing perfect
could I have been purse-seining? could you have been purse-seining? could he have been purse-seining? could we have been purse-seining? could you have been purse-seining? could they have been purse-seining?
Interro-negative form
Simple form
could I not purse-seine? could you not purse-seine? could he not purse-seine? could we not purse-seine? could you not purse-seine? could they not purse-seine?
V-ing form
could I not be purse-seining? could you not be purse-seining? could he not be purse-seining? could we not be purse-seining? could you not be purse-seining? could they not be purse-seining?
Perfect
could I not have purse-seined? could you not have purse-seined? could he not have purse-seined? could we not have purse-seined? could you not have purse-seined? could they not have purse-seined?
V-ing perfect
could I not have been purse-seining? could you not have been purse-seining? could he not have been purse-seining? could we not have been purse-seining? could you not have been purse-seining? could they not have been purse-seining?