could underline
Verbo regolare: underline - underlined- underlined

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could underline
you could underline
he could underline
we could underline
you could underline
they could underline 	I could be underlining
you could be underlining
he could be underlining
we could be underlining
you could be underlining
they could be underlining	I could have underlined
you could have underlined
he could have underlined
we could have underlined
you could have underlined
they could have underlined	I could have been underlining
you could have been underlining
he could have been underlining
we could have been underlining
you could have been underlining
they could have been underlining	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't underline
you couldn't underline
he couldn't underline
we couldn't underline
you couldn't underline
they couldn't underline 	I couldn't be underlining
you couldn't be underlining
he couldn't be underlining
we couldn't be underlining
you couldn't be underlining
they couldn't be underlining	I couldn't have underlined
you couldn't have underlined
he couldn't have underlined
we couldn't have underlined
you couldn't have underlined
they couldn't have underlined	I couldn't have been underlining
you couldn't have been underlining
he couldn't have been underlining
we couldn't have been underlining
you couldn't have been underlining
they couldn't have been underlining	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I underline?
could you underline?
could he underline?
could we underline?
could you underline?
could they underline? 	could I be underlining?
could you be underlining?
could he be underlining?
could we be underlining?
could you be underlining?
could they be underlining? 	could I have underlined?
could you have underlined?
could he have underlined?
could we have underlined?
could you have underlined?
could they have underlined? 	could I have been underlining?
could you have been underlining?
could he have been underlining?
could we have been underlining?
could you have been underlining?
could they have been underlining? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I underline?
couldn't you underline?
couldn't he underline?
couldn't we underline?
couldn't you underline?
couldn't they underline? 	couldn't I be underlining?
couldn't you be underlining?
couldn't he be underlining?
couldn't we be underlining?
couldn't you be underlining?
couldn't they be underlining? 	couldn't I have underlined?
couldn't you have underlined?
couldn't he have underlined?
couldn't we have underlined?
couldn't you have underlined?
couldn't they have underlined? 	couldn't I have been underlining?
couldn't you have been underlining?
couldn't he have been underlining?
couldn't we have been underlining?
couldn't you have been underlining?
couldn't they have been underlining?