I can regale you can regale she can regale we can regale you can regale they can regale
V-ing form
I can be regaling you can be regaling she can be regaling we can be regaling you can be regaling they can be regaling
Perfect
I can have regaled you can have regaled she can have regaled we can have regaled you can have regaled they can have regaled
V-ing perfect
I can have been regaling you can have been regaling she can have been regaling we can have been regaling you can have been regaling they can have been regaling
Negation
Simple form
I cannot regale you cannot regale she cannot regale we cannot regale you cannot regale they cannot regale
V-ing form
I cannot be regaling you cannot be regaling she cannot be regaling we cannot be regaling you cannot be regaling they cannot be regaling
Perfect
I cannot have regaled you cannot have regaled she cannot have regaled we cannot have regaled you cannot have regaled they cannot have regaled
V-ing perfect
I cannot have been regaling you cannot have been regaling she cannot have been regaling we cannot have been regaling you cannot have been regaling they cannot have been regaling
Interrogative form
Simple form
can I regale? can you regale? can she regale? can we regale? can you regale? can they regale?
V-ing form
can I be regaling? can you be regaling? can she be regaling? can we be regaling? can you be regaling? can they be regaling?
Perfect
can I have regaled? can you have regaled? can she have regaled? can we have regaled? can you have regaled? can they have regaled?
V-ing perfect
can I have been regaling? can you have been regaling? can she have been regaling? can we have been regaling? can you have been regaling? can they have been regaling?
Interro-negative form
Simple form
can I not regale? can you not regale? can she not regale? can we not regale? can you not regale? can they not regale?
V-ing form
can I not be regaling? can you not be regaling? can she not be regaling? can we not be regaling? can you not be regaling? can they not be regaling?
Perfect
can I not have regaled? can you not have regaled? can she not have regaled? can we not have regaled? can you not have regaled? can they not have regaled?
V-ing perfect
can I not have been regaling? can you not have been regaling? can she not have been regaling? can we not have been regaling? can you not have been regaling? can they not have been regaling?