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 can't underline
you can't underline
he can't underline
we can't underline
you can't underline
they can't underline 	I can't be underlining
you can't be underlining
he can't be underlining
we can't be underlining
you can't be underlining
they can't be underlining	I can't have underlined
you can't have underlined
he can't have underlined
we can't have underlined
you can't have underlined
they can't have underlined	I can't have been underlining
you can't have been underlining
he can't have been underlining
we can't have been underlining
you can't have been underlining
they can't 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't I underline?
can't you underline?
can't he underline?
can't we underline?
can't you underline?
can't they underline? 	can't I be underlining?
can't you be underlining?
can't he be underlining?
can't we be underlining?
can't you be underlining?
can't they be underlining? 	can't I have underlined?
can't you have underlined?
can't he have underlined?
can't we have underlined?
can't you have underlined?
can't they have underlined? 	can't I have been underlining?
can't you have been underlining?
can't he have been underlining?
can't we have been underlining?
can't you have been underlining?
can't they have been underlining?