must betroth
Verbo regular: betroth - betrothed- betrothed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must betroth
you must betroth
he must betroth
we must betroth
you must betroth
they must betroth 	I must be betrothing
you must be betrothing
he must be betrothing
we must be betrothing
you must be betrothing
they must be betrothing	I must have betrothed
you must have betrothed
he must have betrothed
we must have betrothed
you must have betrothed
they must have betrothed	I must have been betrothing
you must have been betrothing
he must have been betrothing
we must have been betrothing
you must have been betrothing
they must have been betrothing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not betroth
you must not betroth
he must not betroth
we must not betroth
you must not betroth
they must not betroth 	I must not be betrothing
you must not be betrothing
he must not be betrothing
we must not be betrothing
you must not be betrothing
they must not be betrothing	I must not have betrothed
you must not have betrothed
he must not have betrothed
we must not have betrothed
you must not have betrothed
they must not have betrothed	I must not have been betrothing
you must not have been betrothing
he must not have been betrothing
we must not have been betrothing
you must not have been betrothing
they must not have been betrothing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I betroth?
must you betroth?
must he betroth?
must we betroth?
must you betroth?
must they betroth? 	must I be betrothing?
must you be betrothing?
must he be betrothing?
must we be betrothing?
must you be betrothing?
must they be betrothing? 	must I have betrothed?
must you have betrothed?
must he have betrothed?
must we have betrothed?
must you have betrothed?
must they have betrothed? 	must I have been betrothing?
must you have been betrothing?
must he have been betrothing?
must we have been betrothing?
must you have been betrothing?
must they have been betrothing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not betroth?
must you not betroth?
must he not betroth?
must we not betroth?
must you not betroth?
must they not betroth? 	must I not be betrothing?
must you not be betrothing?
must he not be betrothing?
must we not be betrothing?
must you not be betrothing?
must they not be betrothing? 	must I not have betrothed?
must you not have betrothed?
must he not have betrothed?
must we not have betrothed?
must you not have betrothed?
must they not have betrothed? 	must I not have been betrothing?
must you not have been betrothing?
must he not have been betrothing?
must we not have been betrothing?
must you not have been betrothing?
must they not have been betrothing?