must coast
Verbo regular: coast - coasted- coasted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must coast
you must coast
she must coast
we must coast
you must coast
they must coast 	I must be coasting
you must be coasting
she must be coasting
we must be coasting
you must be coasting
they must be coasting	I must have coasted
you must have coasted
she must have coasted
we must have coasted
you must have coasted
they must have coasted	I must have been coasting
you must have been coasting
she must have been coasting
we must have been coasting
you must have been coasting
they must have been coasting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't coast
you mustn't coast
she mustn't coast
we mustn't coast
you mustn't coast
they mustn't coast 	I mustn't be coasting
you mustn't be coasting
she mustn't be coasting
we mustn't be coasting
you mustn't be coasting
they mustn't be coasting	I mustn't have coasted
you mustn't have coasted
she mustn't have coasted
we mustn't have coasted
you mustn't have coasted
they mustn't have coasted	I mustn't have been coasting
you mustn't have been coasting
she mustn't have been coasting
we mustn't have been coasting
you mustn't have been coasting
they mustn't have been coasting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I coast?
must you coast?
must she coast?
must we coast?
must you coast?
must they coast? 	must I be coasting?
must you be coasting?
must she be coasting?
must we be coasting?
must you be coasting?
must they be coasting? 	must I have coasted?
must you have coasted?
must she have coasted?
must we have coasted?
must you have coasted?
must they have coasted? 	must I have been coasting?
must you have been coasting?
must she have been coasting?
must we have been coasting?
must you have been coasting?
must they have been coasting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I coast?
mustn't you coast?
mustn't she coast?
mustn't we coast?
mustn't you coast?
mustn't they coast? 	mustn't I be coasting?
mustn't you be coasting?
mustn't she be coasting?
mustn't we be coasting?
mustn't you be coasting?
mustn't they be coasting? 	mustn't I have coasted?
mustn't you have coasted?
mustn't she have coasted?
mustn't we have coasted?
mustn't you have coasted?
mustn't they have coasted? 	mustn't I have been coasting?
mustn't you have been coasting?
mustn't she have been coasting?
mustn't we have been coasting?
mustn't you have been coasting?
mustn't they have been coasting?