I could button you could button she could button we could button you could button they could button
Forma con V-ing
I could be buttoning you could be buttoning she could be buttoning we could be buttoning you could be buttoning they could be buttoning
Perfetto
I could have buttoned you could have buttoned she could have buttoned we could have buttoned you could have buttoned they could have buttoned
Perfetto con V-ing
I could have been buttoning you could have been buttoning she could have been buttoning we could have been buttoning you could have been buttoning they could have been buttoning
Negazione
Forma semplice
I couldn't button you couldn't button she couldn't button we couldn't button you couldn't button they couldn't button
Forma con V-ing
I couldn't be buttoning you couldn't be buttoning she couldn't be buttoning we couldn't be buttoning you couldn't be buttoning they couldn't be buttoning
Perfetto
I couldn't have buttoned you couldn't have buttoned she couldn't have buttoned we couldn't have buttoned you couldn't have buttoned they couldn't have buttoned
Perfetto con V-ing
I couldn't have been buttoning you couldn't have been buttoning she couldn't have been buttoning we couldn't have been buttoning you couldn't have been buttoning they couldn't have been buttoning
Forma interrogativa
Forma semplice
could I button? could you button? could she button? could we button? could you button? could they button?
Forma con V-ing
could I be buttoning? could you be buttoning? could she be buttoning? could we be buttoning? could you be buttoning? could they be buttoning?
Perfetto
could I have buttoned? could you have buttoned? could she have buttoned? could we have buttoned? could you have buttoned? could they have buttoned?
Perfetto con V-ing
could I have been buttoning? could you have been buttoning? could she have been buttoning? could we have been buttoning? could you have been buttoning? could they have been buttoning?
Forma interro-negativa
Forma semplice
couldn't I button? couldn't you button? couldn't she button? couldn't we button? couldn't you button? couldn't they button?
Forma con V-ing
couldn't I be buttoning? couldn't you be buttoning? couldn't she be buttoning? couldn't we be buttoning? couldn't you be buttoning? couldn't they be buttoning?
Perfetto
couldn't I have buttoned? couldn't you have buttoned? couldn't she have buttoned? couldn't we have buttoned? couldn't you have buttoned? couldn't they have buttoned?
Perfetto con V-ing
couldn't I have been buttoning? couldn't you have been buttoning? couldn't she have been buttoning? couldn't we have been buttoning? couldn't you have been buttoning? couldn't they have been buttoning?