must abandon
Verbo regular: abandon - abandoned- abandoned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must abandon
you must abandon
he must abandon
we must abandon
you must abandon
they must abandon 	I must be abandoning
you must be abandoning
he must be abandoning
we must be abandoning
you must be abandoning
they must be abandoning	I must have abandoned
you must have abandoned
he must have abandoned
we must have abandoned
you must have abandoned
they must have abandoned	I must have been abandoning
you must have been abandoning
he must have been abandoning
we must have been abandoning
you must have been abandoning
they must have been abandoning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not abandon
you must not abandon
he must not abandon
we must not abandon
you must not abandon
they must not abandon 	I must not be abandoning
you must not be abandoning
he must not be abandoning
we must not be abandoning
you must not be abandoning
they must not be abandoning	I must not have abandoned
you must not have abandoned
he must not have abandoned
we must not have abandoned
you must not have abandoned
they must not have abandoned	I must not have been abandoning
you must not have been abandoning
he must not have been abandoning
we must not have been abandoning
you must not have been abandoning
they must not have been abandoning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I abandon?
must you abandon?
must he abandon?
must we abandon?
must you abandon?
must they abandon? 	must I be abandoning?
must you be abandoning?
must he be abandoning?
must we be abandoning?
must you be abandoning?
must they be abandoning? 	must I have abandoned?
must you have abandoned?
must he have abandoned?
must we have abandoned?
must you have abandoned?
must they have abandoned? 	must I have been abandoning?
must you have been abandoning?
must he have been abandoning?
must we have been abandoning?
must you have been abandoning?
must they have been abandoning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not abandon?
must you not abandon?
must he not abandon?
must we not abandon?
must you not abandon?
must they not abandon? 	must I not be abandoning?
must you not be abandoning?
must he not be abandoning?
must we not be abandoning?
must you not be abandoning?
must they not be abandoning? 	must I not have abandoned?
must you not have abandoned?
must he not have abandoned?
must we not have abandoned?
must you not have abandoned?
must they not have abandoned? 	must I not have been abandoning?
must you not have been abandoning?
must he not have been abandoning?
must we not have been abandoning?
must you not have been abandoning?
must they not have been abandoning?