must quoin
Verbo regular: quoin - quoined- quoined

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must quoin
you must quoin
he must quoin
we must quoin
you must quoin
they must quoin 	I must be quoining
you must be quoining
he must be quoining
we must be quoining
you must be quoining
they must be quoining	I must have quoined
you must have quoined
he must have quoined
we must have quoined
you must have quoined
they must have quoined	I must have been quoining
you must have been quoining
he must have been quoining
we must have been quoining
you must have been quoining
they must have been quoining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not quoin
you must not quoin
he must not quoin
we must not quoin
you must not quoin
they must not quoin 	I must not be quoining
you must not be quoining
he must not be quoining
we must not be quoining
you must not be quoining
they must not be quoining	I must not have quoined
you must not have quoined
he must not have quoined
we must not have quoined
you must not have quoined
they must not have quoined	I must not have been quoining
you must not have been quoining
he must not have been quoining
we must not have been quoining
you must not have been quoining
they must not have been quoining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I quoin?
must you quoin?
must he quoin?
must we quoin?
must you quoin?
must they quoin? 	must I be quoining?
must you be quoining?
must he be quoining?
must we be quoining?
must you be quoining?
must they be quoining? 	must I have quoined?
must you have quoined?
must he have quoined?
must we have quoined?
must you have quoined?
must they have quoined? 	must I have been quoining?
must you have been quoining?
must he have been quoining?
must we have been quoining?
must you have been quoining?
must they have been quoining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not quoin?
must you not quoin?
must he not quoin?
must we not quoin?
must you not quoin?
must they not quoin? 	must I not be quoining?
must you not be quoining?
must he not be quoining?
must we not be quoining?
must you not be quoining?
must they not be quoining? 	must I not have quoined?
must you not have quoined?
must he not have quoined?
must we not have quoined?
must you not have quoined?
must they not have quoined? 	must I not have been quoining?
must you not have been quoining?
must he not have been quoining?
must we not have been quoining?
must you not have been quoining?
must they not have been quoining?