Coniugazione del verbo inglese
COULD IMPROVE

Verbo regolare: improve - improved - improved

Affermazione

Forma semplice	Forma con V-ing
I could improve you could improve she could improve we could improve you could improve they could improve	I could be improving you could be improving she could be improving we could be improving you could be improving they could be improving
Perfetto	Perfetto con V-ing
I could have improved you could have improved she could have improved we could have improved you could have improved they could have improved	I could have been improving you could have been improving she could have been improving we could have been improving you could have been improving they could have been improving

Negazione

Forma semplice	Forma con V-ing
I couldn't improve you couldn't improve she couldn't improve we couldn't improve you couldn't improve they couldn't improve	I couldn't be improving you couldn't be improving she couldn't be improving we couldn't be improving you couldn't be improving they couldn't be improving
Perfetto	Perfetto con V-ing
I couldn't have improved you couldn't have improved she couldn't have improved we couldn't have improved you couldn't have improved they couldn't have improved	I couldn't have been improving you couldn't have been improving she couldn't have been improving we couldn't have been improving you couldn't have been improving they couldn't have been improving

Forma interrogativa

Forma semplice	Forma con V-ing
could I improve? could you improve? could she improve? could we improve? could you improve? could they improve?	could I be improving? could you be improving? could she be improving? could we be improving? could you be improving? could they be improving?
Perfetto	Perfetto con V-ing
could I have improved? could you have improved? could she have improved? could we have improved? could you have improved? could they have improved?	could I have been improving? could you have been improving? could she have been improving? could we have been improving? could you have been improving? could they have been improving?

Forma interro-negativa

Forma semplice	Forma con V-ing
couldn't I improve? couldn't you improve? couldn't she improve? couldn't we improve? couldn't you improve? couldn't they improve?	couldn't I be improving? couldn't you be improving? couldn't she be improving? couldn't we be improving? couldn't you be improving? couldn't they be improving?
Perfetto	Perfetto con V-ing
couldn't I have improved? couldn't you have improved? couldn't she have improved? couldn't we have improved? couldn't you have improved? couldn't they have improved?	couldn't I have been improving? couldn't you have been improving? couldn't she have been improving? couldn't we have been improving? couldn't you have been improving? couldn't they have been improving?