I'll be howling you'll be howling he'll be howling we'll be howling you'll be howling they'll be howling
Perfect
I'll have howled you'll have howled he'll have howled we'll have howled you'll have howled they'll have howled
V-ing perfect
I'll have been howling you'll have been howling he'll have been howling we'll have been howling you'll have been howling they'll have been howling
Negation
Simple form
I won't howl you won't howl he won't howl we won't howl you won't howl they won't howl
V-ing form
I won't be howling you won't be howling he won't be howling we won't be howling you won't be howling they won't be howling
Perfect
I won't have howled you won't have howled he won't have howled we won't have howled you won't have howled they won't have howled
V-ing perfect
I won't have been howling you won't have been howling he won't have been howling we won't have been howling you won't have been howling they won't have been howling
Interrogative form
Simple form
will I howl? will you howl? will he howl? will we howl? will you howl? will they howl?
V-ing form
will I be howling? will you be howling? will he be howling? will we be howling? will you be howling? will they be howling?
Perfect
will I have howled? will you have howled? will he have howled? will we have howled? will you have howled? will they have howled?
V-ing perfect
will I have been howling? will you have been howling? will he have been howling? will we have been howling? will you have been howling? will they have been howling?
Interro-negative form
Simple form
won't I howl? won't you howl? won't he howl? won't we howl? won't you howl? won't they howl?
V-ing form
won't I be howling? won't you be howling? won't he be howling? won't we be howling? won't you be howling? won't they be howling?
Perfect
won't I have howled? won't you have howled? won't he have howled? won't we have howled? won't you have howled? won't they have howled?
V-ing perfect
won't I have been howling? won't you have been howling? won't he have been howling? won't we have been howling? won't you have been howling? won't they have been howling?