must gainsay
Verbo irregular: gainsay - gainsaid- gainsaid

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must gainsay
you must gainsay
he must gainsay
we must gainsay
you must gainsay
they must gainsay 	I must be gainsaying
you must be gainsaying
he must be gainsaying
we must be gainsaying
you must be gainsaying
they must be gainsaying	I must have gainsaid
you must have gainsaid
he must have gainsaid
we must have gainsaid
you must have gainsaid
they must have gainsaid	I must have been gainsaying
you must have been gainsaying
he must have been gainsaying
we must have been gainsaying
you must have been gainsaying
they must have been gainsaying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not gainsay
you must not gainsay
he must not gainsay
we must not gainsay
you must not gainsay
they must not gainsay 	I must not be gainsaying
you must not be gainsaying
he must not be gainsaying
we must not be gainsaying
you must not be gainsaying
they must not be gainsaying	I must not have gainsaid
you must not have gainsaid
he must not have gainsaid
we must not have gainsaid
you must not have gainsaid
they must not have gainsaid	I must not have been gainsaying
you must not have been gainsaying
he must not have been gainsaying
we must not have been gainsaying
you must not have been gainsaying
they must not have been gainsaying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I gainsay?
must you gainsay?
must he gainsay?
must we gainsay?
must you gainsay?
must they gainsay? 	must I be gainsaying?
must you be gainsaying?
must he be gainsaying?
must we be gainsaying?
must you be gainsaying?
must they be gainsaying? 	must I have gainsaid?
must you have gainsaid?
must he have gainsaid?
must we have gainsaid?
must you have gainsaid?
must they have gainsaid? 	must I have been gainsaying?
must you have been gainsaying?
must he have been gainsaying?
must we have been gainsaying?
must you have been gainsaying?
must they have been gainsaying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not gainsay?
must you not gainsay?
must he not gainsay?
must we not gainsay?
must you not gainsay?
must they not gainsay? 	must I not be gainsaying?
must you not be gainsaying?
must he not be gainsaying?
must we not be gainsaying?
must you not be gainsaying?
must they not be gainsaying? 	must I not have gainsaid?
must you not have gainsaid?
must he not have gainsaid?
must we not have gainsaid?
must you not have gainsaid?
must they not have gainsaid? 	must I not have been gainsaying?
must you not have been gainsaying?
must he not have been gainsaying?
must we not have been gainsaying?
must you not have been gainsaying?
must they not have been gainsaying?