I could commune you could commune she could commune we could commune you could commune they could commune
V-ing form
I could be communing you could be communing she could be communing we could be communing you could be communing they could be communing
Perfect
I could have communed you could have communed she could have communed we could have communed you could have communed they could have communed
V-ing perfect
I could have been communing you could have been communing she could have been communing we could have been communing you could have been communing they could have been communing
Negation
Simple form
I couldn't commune you couldn't commune she couldn't commune we couldn't commune you couldn't commune they couldn't commune
V-ing form
I couldn't be communing you couldn't be communing she couldn't be communing we couldn't be communing you couldn't be communing they couldn't be communing
Perfect
I couldn't have communed you couldn't have communed she couldn't have communed we couldn't have communed you couldn't have communed they couldn't have communed
V-ing perfect
I couldn't have been communing you couldn't have been communing she couldn't have been communing we couldn't have been communing you couldn't have been communing they couldn't have been communing
Interrogative form
Simple form
could I commune? could you commune? could she commune? could we commune? could you commune? could they commune?
V-ing form
could I be communing? could you be communing? could she be communing? could we be communing? could you be communing? could they be communing?
Perfect
could I have communed? could you have communed? could she have communed? could we have communed? could you have communed? could they have communed?
V-ing perfect
could I have been communing? could you have been communing? could she have been communing? could we have been communing? could you have been communing? could they have been communing?
Interro-negative form
Simple form
couldn't I commune? couldn't you commune? couldn't she commune? couldn't we commune? couldn't you commune? couldn't they commune?
V-ing form
couldn't I be communing? couldn't you be communing? couldn't she be communing? couldn't we be communing? couldn't you be communing? couldn't they be communing?
Perfect
couldn't I have communed? couldn't you have communed? couldn't she have communed? couldn't we have communed? couldn't you have communed? couldn't they have communed?
V-ing perfect
couldn't I have been communing? couldn't you have been communing? couldn't she have been communing? couldn't we have been communing? couldn't you have been communing? couldn't they have been communing?