Coniugazione del verbo inglese
COULD BIRL

Verbo regolare: birl - birled - birled

Affermazione

Forma semplice	Forma con V-ing
I could birl you could birl she could birl we could birl you could birl they could birl	I could be birling you could be birling she could be birling we could be birling you could be birling they could be birling
Perfetto	Perfetto con V-ing
I could have birled you could have birled she could have birled we could have birled you could have birled they could have birled	I could have been birling you could have been birling she could have been birling we could have been birling you could have been birling they could have been birling

Negazione

Forma semplice	Forma con V-ing
I could not birl you could not birl she could not birl we could not birl you could not birl they could not birl	I could not be birling you could not be birling she could not be birling we could not be birling you could not be birling they could not be birling
Perfetto	Perfetto con V-ing
I could not have birled you could not have birled she could not have birled we could not have birled you could not have birled they could not have birled	I could not have been birling you could not have been birling she could not have been birling we could not have been birling you could not have been birling they could not have been birling

Forma interrogativa

Forma semplice	Forma con V-ing
could I birl? could you birl? could she birl? could we birl? could you birl? could they birl?	could I be birling? could you be birling? could she be birling? could we be birling? could you be birling? could they be birling?
Perfetto	Perfetto con V-ing
could I have birled? could you have birled? could she have birled? could we have birled? could you have birled? could they have birled?	could I have been birling? could you have been birling? could she have been birling? could we have been birling? could you have been birling? could they have been birling?

Forma interro-negativa

Forma semplice	Forma con V-ing
could I not birl? could you not birl? could she not birl? could we not birl? could you not birl? could they not birl?	could I not be birling? could you not be birling? could she not be birling? could we not be birling? could you not be birling? could they not be birling?
Perfetto	Perfetto con V-ing
could I not have birled? could you not have birled? could she not have birled? could we not have birled? could you not have birled? could they not have birled?	could I not have been birling? could you not have been birling? could she not have been birling? could we not have been birling? could you not have been birling? could they not have been birling?