can long
Verbo regular: long - longed- longed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can long
you can long
he can long
we can long
you can long
they can long 	I can be longing
you can be longing
he can be longing
we can be longing
you can be longing
they can be longing	I can have longed
you can have longed
he can have longed
we can have longed
you can have longed
they can have longed	I can have been longing
you can have been longing
he can have been longing
we can have been longing
you can have been longing
they can have been longing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot long
you cannot long
he cannot long
we cannot long
you cannot long
they cannot long 	I cannot be longing
you cannot be longing
he cannot be longing
we cannot be longing
you cannot be longing
they cannot be longing	I cannot have longed
you cannot have longed
he cannot have longed
we cannot have longed
you cannot have longed
they cannot have longed	I cannot have been longing
you cannot have been longing
he cannot have been longing
we cannot have been longing
you cannot have been longing
they cannot have been longing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I long?
can you long?
can he long?
can we long?
can you long?
can they long? 	can I be longing?
can you be longing?
can he be longing?
can we be longing?
can you be longing?
can they be longing? 	can I have longed?
can you have longed?
can he have longed?
can we have longed?
can you have longed?
can they have longed? 	can I have been longing?
can you have been longing?
can he have been longing?
can we have been longing?
can you have been longing?
can they have been longing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not long?
can you not long?
can he not long?
can we not long?
can you not long?
can they not long? 	can I not be longing?
can you not be longing?
can he not be longing?
can we not be longing?
can you not be longing?
can they not be longing? 	can I not have longed?
can you not have longed?
can he not have longed?
can we not have longed?
can you not have longed?
can they not have longed? 	can I not have been longing?
can you not have been longing?
can he not have been longing?
can we not have been longing?
can you not have been longing?
can they not have been longing?