must teleconference
Verbo regular: teleconference - teleconferenced- teleconferenced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must teleconference
you must teleconference
he must teleconference
we must teleconference
you must teleconference
they must teleconference 	I must be teleconferencing
you must be teleconferencing
he must be teleconferencing
we must be teleconferencing
you must be teleconferencing
they must be teleconferencing	I must have teleconferenced
you must have teleconferenced
he must have teleconferenced
we must have teleconferenced
you must have teleconferenced
they must have teleconferenced	I must have been teleconferencing
you must have been teleconferencing
he must have been teleconferencing
we must have been teleconferencing
you must have been teleconferencing
they must have been teleconferencing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not teleconference
you must not teleconference
he must not teleconference
we must not teleconference
you must not teleconference
they must not teleconference 	I must not be teleconferencing
you must not be teleconferencing
he must not be teleconferencing
we must not be teleconferencing
you must not be teleconferencing
they must not be teleconferencing	I must not have teleconferenced
you must not have teleconferenced
he must not have teleconferenced
we must not have teleconferenced
you must not have teleconferenced
they must not have teleconferenced	I must not have been teleconferencing
you must not have been teleconferencing
he must not have been teleconferencing
we must not have been teleconferencing
you must not have been teleconferencing
they must not have been teleconferencing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I teleconference?
must you teleconference?
must he teleconference?
must we teleconference?
must you teleconference?
must they teleconference? 	must I be teleconferencing?
must you be teleconferencing?
must he be teleconferencing?
must we be teleconferencing?
must you be teleconferencing?
must they be teleconferencing? 	must I have teleconferenced?
must you have teleconferenced?
must he have teleconferenced?
must we have teleconferenced?
must you have teleconferenced?
must they have teleconferenced? 	must I have been teleconferencing?
must you have been teleconferencing?
must he have been teleconferencing?
must we have been teleconferencing?
must you have been teleconferencing?
must they have been teleconferencing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not teleconference?
must you not teleconference?
must he not teleconference?
must we not teleconference?
must you not teleconference?
must they not teleconference? 	must I not be teleconferencing?
must you not be teleconferencing?
must he not be teleconferencing?
must we not be teleconferencing?
must you not be teleconferencing?
must they not be teleconferencing? 	must I not have teleconferenced?
must you not have teleconferenced?
must he not have teleconferenced?
must we not have teleconferenced?
must you not have teleconferenced?
must they not have teleconferenced? 	must I not have been teleconferencing?
must you not have been teleconferencing?
must he not have been teleconferencing?
must we not have been teleconferencing?
must you not have been teleconferencing?
must they not have been teleconferencing?