I can overcast you can overcast she can overcast we can overcast you can overcast they can overcast
V-ing form
I can be overcasting you can be overcasting she can be overcasting we can be overcasting you can be overcasting they can be overcasting
Perfect
I can have overcasted you can have overcasted she can have overcasted we can have overcasted you can have overcasted they can have overcasted
V-ing perfect
I can have been overcasting you can have been overcasting she can have been overcasting we can have been overcasting you can have been overcasting they can have been overcasting
Negation
Simple form
I can't overcast you can't overcast she can't overcast we can't overcast you can't overcast they can't overcast
V-ing form
I can't be overcasting you can't be overcasting she can't be overcasting we can't be overcasting you can't be overcasting they can't be overcasting
Perfect
I can't have overcasted you can't have overcasted she can't have overcasted we can't have overcasted you can't have overcasted they can't have overcasted
V-ing perfect
I can't have been overcasting you can't have been overcasting she can't have been overcasting we can't have been overcasting you can't have been overcasting they can't have been overcasting
Interrogative form
Simple form
can I overcast? can you overcast? can she overcast? can we overcast? can you overcast? can they overcast?
V-ing form
can I be overcasting? can you be overcasting? can she be overcasting? can we be overcasting? can you be overcasting? can they be overcasting?
Perfect
can I have overcasted? can you have overcasted? can she have overcasted? can we have overcasted? can you have overcasted? can they have overcasted?
V-ing perfect
can I have been overcasting? can you have been overcasting? can she have been overcasting? can we have been overcasting? can you have been overcasting? can they have been overcasting?
Interro-negative form
Simple form
can't I overcast? can't you overcast? can't she overcast? can't we overcast? can't you overcast? can't they overcast?
V-ing form
can't I be overcasting? can't you be overcasting? can't she be overcasting? can't we be overcasting? can't you be overcasting? can't they be overcasting?
Perfect
can't I have overcasted? can't you have overcasted? can't she have overcasted? can't we have overcasted? can't you have overcasted? can't they have overcasted?
V-ing perfect
can't I have been overcasting? can't you have been overcasting? can't she have been overcasting? can't we have been overcasting? can't you have been overcasting? can't they have been overcasting?