I could applaud you could applaud she could applaud we could applaud you could applaud they could applaud
V-ing form
I could be applauding you could be applauding she could be applauding we could be applauding you could be applauding they could be applauding
Perfect
I could have applauded you could have applauded she could have applauded we could have applauded you could have applauded they could have applauded
V-ing perfect
I could have been applauding you could have been applauding she could have been applauding we could have been applauding you could have been applauding they could have been applauding
Negation
Simple form
I could not applaud you could not applaud she could not applaud we could not applaud you could not applaud they could not applaud
V-ing form
I could not be applauding you could not be applauding she could not be applauding we could not be applauding you could not be applauding they could not be applauding
Perfect
I could not have applauded you could not have applauded she could not have applauded we could not have applauded you could not have applauded they could not have applauded
V-ing perfect
I could not have been applauding you could not have been applauding she could not have been applauding we could not have been applauding you could not have been applauding they could not have been applauding
Interrogative form
Simple form
could I applaud? could you applaud? could she applaud? could we applaud? could you applaud? could they applaud?
V-ing form
could I be applauding? could you be applauding? could she be applauding? could we be applauding? could you be applauding? could they be applauding?
Perfect
could I have applauded? could you have applauded? could she have applauded? could we have applauded? could you have applauded? could they have applauded?
V-ing perfect
could I have been applauding? could you have been applauding? could she have been applauding? could we have been applauding? could you have been applauding? could they have been applauding?
Interro-negative form
Simple form
could I not applaud? could you not applaud? could she not applaud? could we not applaud? could you not applaud? could they not applaud?
V-ing form
could I not be applauding? could you not be applauding? could she not be applauding? could we not be applauding? could you not be applauding? could they not be applauding?
Perfect
could I not have applauded? could you not have applauded? could she not have applauded? could we not have applauded? could you not have applauded? could they not have applauded?
V-ing perfect
could I not have been applauding? could you not have been applauding? could she not have been applauding? could we not have been applauding? could you not have been applauding? could they not have been applauding?