I'll be crumbling you'll be crumbling she'll be crumbling we'll be crumbling you'll be crumbling they'll be crumbling
Perfect
I'll have crumbled you'll have crumbled she'll have crumbled we'll have crumbled you'll have crumbled they'll have crumbled
V-ing perfect
I'll have been crumbling you'll have been crumbling she'll have been crumbling we'll have been crumbling you'll have been crumbling they'll have been crumbling
Negation
Simple form
I shan't crumble you shan't crumble she shan't crumble we shan't crumble you shan't crumble they shan't crumble
V-ing form
I shan't be crumbling you shan't be crumbling she shan't be crumbling we shan't be crumbling you shan't be crumbling they shan't be crumbling
Perfect
I shan't have crumbled you shan't have crumbled she shan't have crumbled we shan't have crumbled you shan't have crumbled they shan't have crumbled
V-ing perfect
I shan't have been crumbling you shan't have been crumbling she shan't have been crumbling we shan't have been crumbling you shan't have been crumbling they shan't have been crumbling
Interrogative form
Simple form
shall I crumble? shall you crumble? shall she crumble? shall we crumble? shall you crumble? shall they crumble?
V-ing form
shall I be crumbling? shall you be crumbling? shall she be crumbling? shall we be crumbling? shall you be crumbling? shall they be crumbling?
Perfect
shall I have crumbled? shall you have crumbled? shall she have crumbled? shall we have crumbled? shall you have crumbled? shall they have crumbled?
V-ing perfect
shall I have been crumbling? shall you have been crumbling? shall she have been crumbling? shall we have been crumbling? shall you have been crumbling? shall they have been crumbling?
Interro-negative form
Simple form
shan't I crumble? shan't you crumble? shan't she crumble? shan't we crumble? shan't you crumble? shan't they crumble?
V-ing form
shan't I be crumbling? shan't you be crumbling? shan't she be crumbling? shan't we be crumbling? shan't you be crumbling? shan't they be crumbling?
Perfect
shan't I have crumbled? shan't you have crumbled? shan't she have crumbled? shan't we have crumbled? shan't you have crumbled? shan't they have crumbled?
V-ing perfect
shan't I have been crumbling? shan't you have been crumbling? shan't she have been crumbling? shan't we have been crumbling? shan't you have been crumbling? shan't they have been crumbling?