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