I could disbud you could disbud he could disbud we could disbud you could disbud they could disbud
V-ing form
I could be disbudding you could be disbudding he could be disbudding we could be disbudding you could be disbudding they could be disbudding
Perfect
I could have disbudded you could have disbudded he could have disbudded we could have disbudded you could have disbudded they could have disbudded
V-ing perfect
I could have been disbudding you could have been disbudding he could have been disbudding we could have been disbudding you could have been disbudding they could have been disbudding
Negation
Simple form
I couldn't disbud you couldn't disbud he couldn't disbud we couldn't disbud you couldn't disbud they couldn't disbud
V-ing form
I couldn't be disbudding you couldn't be disbudding he couldn't be disbudding we couldn't be disbudding you couldn't be disbudding they couldn't be disbudding
Perfect
I couldn't have disbudded you couldn't have disbudded he couldn't have disbudded we couldn't have disbudded you couldn't have disbudded they couldn't have disbudded
V-ing perfect
I couldn't have been disbudding you couldn't have been disbudding he couldn't have been disbudding we couldn't have been disbudding you couldn't have been disbudding they couldn't have been disbudding
Interrogative form
Simple form
could I disbud? could you disbud? could he disbud? could we disbud? could you disbud? could they disbud?
V-ing form
could I be disbudding? could you be disbudding? could he be disbudding? could we be disbudding? could you be disbudding? could they be disbudding?
Perfect
could I have disbudded? could you have disbudded? could he have disbudded? could we have disbudded? could you have disbudded? could they have disbudded?
V-ing perfect
could I have been disbudding? could you have been disbudding? could he have been disbudding? could we have been disbudding? could you have been disbudding? could they have been disbudding?
Interro-negative form
Simple form
couldn't I disbud? couldn't you disbud? couldn't he disbud? couldn't we disbud? couldn't you disbud? couldn't they disbud?
V-ing form
couldn't I be disbudding? couldn't you be disbudding? couldn't he be disbudding? couldn't we be disbudding? couldn't you be disbudding? couldn't they be disbudding?
Perfect
couldn't I have disbudded? couldn't you have disbudded? couldn't he have disbudded? couldn't we have disbudded? couldn't you have disbudded? couldn't they have disbudded?
V-ing perfect
couldn't I have been disbudding? couldn't you have been disbudding? couldn't he have been disbudding? couldn't we have been disbudding? couldn't you have been disbudding? couldn't they have been disbudding?