English verb conjugation
COULD UNCHAIR

Regular verb: unchair - unchaired - unchaired

Affirmation

Simple form	V-ing form
I could unchair you could unchair he could unchair we could unchair you could unchair they could unchair	I could be unchairing you could be unchairing he could be unchairing we could be unchairing you could be unchairing they could be unchairing
Perfect	V-ing perfect
I could have unchaired you could have unchaired he could have unchaired we could have unchaired you could have unchaired they could have unchaired	I could have been unchairing you could have been unchairing he could have been unchairing we could have been unchairing you could have been unchairing they could have been unchairing

Negation

Simple form	V-ing form
I could not unchair you could not unchair he could not unchair we could not unchair you could not unchair they could not unchair	I could not be unchairing you could not be unchairing he could not be unchairing we could not be unchairing you could not be unchairing they could not be unchairing
Perfect	V-ing perfect
I could not have unchaired you could not have unchaired he could not have unchaired we could not have unchaired you could not have unchaired they could not have unchaired	I could not have been unchairing you could not have been unchairing he could not have been unchairing we could not have been unchairing you could not have been unchairing they could not have been unchairing

Interrogative form

Simple form	V-ing form
could I unchair? could you unchair? could he unchair? could we unchair? could you unchair? could they unchair?	could I be unchairing? could you be unchairing? could he be unchairing? could we be unchairing? could you be unchairing? could they be unchairing?
Perfect	V-ing perfect
could I have unchaired? could you have unchaired? could he have unchaired? could we have unchaired? could you have unchaired? could they have unchaired?	could I have been unchairing? could you have been unchairing? could he have been unchairing? could we have been unchairing? could you have been unchairing? could they have been unchairing?

Interro-negative form

Simple form	V-ing form
could I not unchair? could you not unchair? could he not unchair? could we not unchair? could you not unchair? could they not unchair?	could I not be unchairing? could you not be unchairing? could he not be unchairing? could we not be unchairing? could you not be unchairing? could they not be unchairing?
Perfect	V-ing perfect
could I not have unchaired? could you not have unchaired? could he not have unchaired? could we not have unchaired? could you not have unchaired? could they not have unchaired?	could I not have been unchairing? could you not have been unchairing? could he not have been unchairing? could we not have been unchairing? could you not have been unchairing? could they not have been unchairing?