must trade
Regular verb: trade - traded- traded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must trade
you must trade
she must trade
we must trade
you must trade
they must trade 	I must be trading
you must be trading
she must be trading
we must be trading
you must be trading
they must be trading	I must have traded
you must have traded
she must have traded
we must have traded
you must have traded
they must have traded	I must have been trading
you must have been trading
she must have been trading
we must have been trading
you must have been trading
they must have been trading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not trade
you must not trade
she must not trade
we must not trade
you must not trade
they must not trade 	I must not be trading
you must not be trading
she must not be trading
we must not be trading
you must not be trading
they must not be trading	I must not have traded
you must not have traded
she must not have traded
we must not have traded
you must not have traded
they must not have traded	I must not have been trading
you must not have been trading
she must not have been trading
we must not have been trading
you must not have been trading
they must not have been trading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I trade?
must you trade?
must she trade?
must we trade?
must you trade?
must they trade? 	must I be trading?
must you be trading?
must she be trading?
must we be trading?
must you be trading?
must they be trading? 	must I have traded?
must you have traded?
must she have traded?
must we have traded?
must you have traded?
must they have traded? 	must I have been trading?
must you have been trading?
must she have been trading?
must we have been trading?
must you have been trading?
must they have been trading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not trade?
must you not trade?
must she not trade?
must we not trade?
must you not trade?
must they not trade? 	must I not be trading?
must you not be trading?
must she not be trading?
must we not be trading?
must you not be trading?
must they not be trading? 	must I not have traded?
must you not have traded?
must she not have traded?
must we not have traded?
must you not have traded?
must they not have traded? 	must I not have been trading?
must you not have been trading?
must she not have been trading?
must we not have been trading?
must you not have been trading?
must they not have been trading?