must specialise
Verbo regular: specialise - specialised- specialised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must specialise
you must specialise
he must specialise
we must specialise
you must specialise
they must specialise 	I must be specialising
you must be specialising
he must be specialising
we must be specialising
you must be specialising
they must be specialising	I must have specialised
you must have specialised
he must have specialised
we must have specialised
you must have specialised
they must have specialised	I must have been specialising
you must have been specialising
he must have been specialising
we must have been specialising
you must have been specialising
they must have been specialising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not specialise
you must not specialise
he must not specialise
we must not specialise
you must not specialise
they must not specialise 	I must not be specialising
you must not be specialising
he must not be specialising
we must not be specialising
you must not be specialising
they must not be specialising	I must not have specialised
you must not have specialised
he must not have specialised
we must not have specialised
you must not have specialised
they must not have specialised	I must not have been specialising
you must not have been specialising
he must not have been specialising
we must not have been specialising
you must not have been specialising
they must not have been specialising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I specialise?
must you specialise?
must he specialise?
must we specialise?
must you specialise?
must they specialise? 	must I be specialising?
must you be specialising?
must he be specialising?
must we be specialising?
must you be specialising?
must they be specialising? 	must I have specialised?
must you have specialised?
must he have specialised?
must we have specialised?
must you have specialised?
must they have specialised? 	must I have been specialising?
must you have been specialising?
must he have been specialising?
must we have been specialising?
must you have been specialising?
must they have been specialising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not specialise?
must you not specialise?
must he not specialise?
must we not specialise?
must you not specialise?
must they not specialise? 	must I not be specialising?
must you not be specialising?
must he not be specialising?
must we not be specialising?
must you not be specialising?
must they not be specialising? 	must I not have specialised?
must you not have specialised?
must he not have specialised?
must we not have specialised?
must you not have specialised?
must they not have specialised? 	must I not have been specialising?
must you not have been specialising?
must he not have been specialising?
must we not have been specialising?
must you not have been specialising?
must they not have been specialising?