I could overcast you could overcast she could overcast we could overcast you could overcast they could overcast
Forme en V-ing
I could be overcasting you could be overcasting she could be overcasting we could be overcasting you could be overcasting they could be overcasting
Perfect
I could have overcasted you could have overcasted she could have overcasted we could have overcasted you could have overcasted they could have overcasted
Perfect en V-ing
I could have been overcasting you could have been overcasting she could have been overcasting we could have been overcasting you could have been overcasting they could have been overcasting
Négation
Forme simple
I couldn't overcast you couldn't overcast she couldn't overcast we couldn't overcast you couldn't overcast they couldn't overcast
Forme en V-ing
I couldn't be overcasting you couldn't be overcasting she couldn't be overcasting we couldn't be overcasting you couldn't be overcasting they couldn't be overcasting
Perfect
I couldn't have overcasted you couldn't have overcasted she couldn't have overcasted we couldn't have overcasted you couldn't have overcasted they couldn't have overcasted
Perfect en V-ing
I couldn't have been overcasting you couldn't have been overcasting she couldn't have been overcasting we couldn't have been overcasting you couldn't have been overcasting they couldn't have been overcasting
Forme interrogative
Forme simple
could I overcast? could you overcast? could she overcast? could we overcast? could you overcast? could they overcast?
Forme en V-ing
could I be overcasting? could you be overcasting? could she be overcasting? could we be overcasting? could you be overcasting? could they be overcasting?
Perfect
could I have overcasted? could you have overcasted? could she have overcasted? could we have overcasted? could you have overcasted? could they have overcasted?
Perfect en V-ing
could I have been overcasting? could you have been overcasting? could she have been overcasting? could we have been overcasting? could you have been overcasting? could they have been overcasting?
Forme interro-négative
Forme simple
couldn't I overcast? couldn't you overcast? couldn't she overcast? couldn't we overcast? couldn't you overcast? couldn't they overcast?
Forme en V-ing
couldn't I be overcasting? couldn't you be overcasting? couldn't she be overcasting? couldn't we be overcasting? couldn't you be overcasting? couldn't they be overcasting?
Perfect
couldn't I have overcasted? couldn't you have overcasted? couldn't she have overcasted? couldn't we have overcasted? couldn't you have overcasted? couldn't they have overcasted?
Perfect en V-ing
couldn't I have been overcasting? couldn't you have been overcasting? couldn't she have been overcasting? couldn't we have been overcasting? couldn't you have been overcasting? couldn't they have been overcasting?