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