can underline
Verbo regular: underline - underlined- underlined

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can underline
you can underline
he can underline
we can underline
you can underline
they can underline 	I can be underlining
you can be underlining
he can be underlining
we can be underlining
you can be underlining
they can be underlining	I can have underlined
you can have underlined
he can have underlined
we can have underlined
you can have underlined
they can have underlined	I can have been underlining
you can have been underlining
he can have been underlining
we can have been underlining
you can have been underlining
they can have been underlining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot underline
you cannot underline
he cannot underline
we cannot underline
you cannot underline
they cannot underline 	I cannot be underlining
you cannot be underlining
he cannot be underlining
we cannot be underlining
you cannot be underlining
they cannot be underlining	I cannot have underlined
you cannot have underlined
he cannot have underlined
we cannot have underlined
you cannot have underlined
they cannot have underlined	I cannot have been underlining
you cannot have been underlining
he cannot have been underlining
we cannot have been underlining
you cannot have been underlining
they cannot have been underlining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I underline?
can you underline?
can he underline?
can we underline?
can you underline?
can they underline? 	can I be underlining?
can you be underlining?
can he be underlining?
can we be underlining?
can you be underlining?
can they be underlining? 	can I have underlined?
can you have underlined?
can he have underlined?
can we have underlined?
can you have underlined?
can they have underlined? 	can I have been underlining?
can you have been underlining?
can he have been underlining?
can we have been underlining?
can you have been underlining?
can they have been underlining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not underline?
can you not underline?
can he not underline?
can we not underline?
can you not underline?
can they not underline? 	can I not be underlining?
can you not be underlining?
can he not be underlining?
can we not be underlining?
can you not be underlining?
can they not be underlining? 	can I not have underlined?
can you not have underlined?
can he not have underlined?
can we not have underlined?
can you not have underlined?
can they not have underlined? 	can I not have been underlining?
can you not have been underlining?
can he not have been underlining?
can we not have been underlining?
can you not have been underlining?
can they not have been underlining?