must safeguard
Verbo regular: safeguard - safeguarded- safeguarded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must safeguard
you must safeguard
he must safeguard
we must safeguard
you must safeguard
they must safeguard 	I must be safeguarding
you must be safeguarding
he must be safeguarding
we must be safeguarding
you must be safeguarding
they must be safeguarding	I must have safeguarded
you must have safeguarded
he must have safeguarded
we must have safeguarded
you must have safeguarded
they must have safeguarded	I must have been safeguarding
you must have been safeguarding
he must have been safeguarding
we must have been safeguarding
you must have been safeguarding
they must have been safeguarding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not safeguard
you must not safeguard
he must not safeguard
we must not safeguard
you must not safeguard
they must not safeguard 	I must not be safeguarding
you must not be safeguarding
he must not be safeguarding
we must not be safeguarding
you must not be safeguarding
they must not be safeguarding	I must not have safeguarded
you must not have safeguarded
he must not have safeguarded
we must not have safeguarded
you must not have safeguarded
they must not have safeguarded	I must not have been safeguarding
you must not have been safeguarding
he must not have been safeguarding
we must not have been safeguarding
you must not have been safeguarding
they must not have been safeguarding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I safeguard?
must you safeguard?
must he safeguard?
must we safeguard?
must you safeguard?
must they safeguard? 	must I be safeguarding?
must you be safeguarding?
must he be safeguarding?
must we be safeguarding?
must you be safeguarding?
must they be safeguarding? 	must I have safeguarded?
must you have safeguarded?
must he have safeguarded?
must we have safeguarded?
must you have safeguarded?
must they have safeguarded? 	must I have been safeguarding?
must you have been safeguarding?
must he have been safeguarding?
must we have been safeguarding?
must you have been safeguarding?
must they have been safeguarding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not safeguard?
must you not safeguard?
must he not safeguard?
must we not safeguard?
must you not safeguard?
must they not safeguard? 	must I not be safeguarding?
must you not be safeguarding?
must he not be safeguarding?
must we not be safeguarding?
must you not be safeguarding?
must they not be safeguarding? 	must I not have safeguarded?
must you not have safeguarded?
must he not have safeguarded?
must we not have safeguarded?
must you not have safeguarded?
must they not have safeguarded? 	must I not have been safeguarding?
must you not have been safeguarding?
must he not have been safeguarding?
must we not have been safeguarding?
must you not have been safeguarding?
must they not have been safeguarding?