could explain
Verbo regolare: explain - explained- explained

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could explain
you could explain
he could explain
we could explain
you could explain
they could explain 	I could be explaining
you could be explaining
he could be explaining
we could be explaining
you could be explaining
they could be explaining	I could have explained
you could have explained
he could have explained
we could have explained
you could have explained
they could have explained	I could have been explaining
you could have been explaining
he could have been explaining
we could have been explaining
you could have been explaining
they could have been explaining	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't explain
you couldn't explain
he couldn't explain
we couldn't explain
you couldn't explain
they couldn't explain 	I couldn't be explaining
you couldn't be explaining
he couldn't be explaining
we couldn't be explaining
you couldn't be explaining
they couldn't be explaining	I couldn't have explained
you couldn't have explained
he couldn't have explained
we couldn't have explained
you couldn't have explained
they couldn't have explained	I couldn't have been explaining
you couldn't have been explaining
he couldn't have been explaining
we couldn't have been explaining
you couldn't have been explaining
they couldn't have been explaining	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I explain?
could you explain?
could he explain?
could we explain?
could you explain?
could they explain? 	could I be explaining?
could you be explaining?
could he be explaining?
could we be explaining?
could you be explaining?
could they be explaining? 	could I have explained?
could you have explained?
could he have explained?
could we have explained?
could you have explained?
could they have explained? 	could I have been explaining?
could you have been explaining?
could he have been explaining?
could we have been explaining?
could you have been explaining?
could they have been explaining? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I explain?
couldn't you explain?
couldn't he explain?
couldn't we explain?
couldn't you explain?
couldn't they explain? 	couldn't I be explaining?
couldn't you be explaining?
couldn't he be explaining?
couldn't we be explaining?
couldn't you be explaining?
couldn't they be explaining? 	couldn't I have explained?
couldn't you have explained?
couldn't he have explained?
couldn't we have explained?
couldn't you have explained?
couldn't they have explained? 	couldn't I have been explaining?
couldn't you have been explaining?
couldn't he have been explaining?
couldn't we have been explaining?
couldn't you have been explaining?
couldn't they have been explaining?