will crumble
Regular verb: crumble - crumbled- crumbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll crumble
you'll crumble
she'll crumble
we'll crumble
you'll crumble
they'll crumble 	I'll be crumbling
you'll be crumbling
she'll be crumbling
we'll be crumbling
you'll be crumbling
they'll be crumbling	I'll have crumbled
you'll have crumbled
she'll have crumbled
we'll have crumbled
you'll have crumbled
they'll have crumbled	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 	V-ing form 	Perfect 	V-ing perfect 	
I won't crumble
you won't crumble
she won't crumble
we won't crumble
you won't crumble
they won't crumble 	I won't be crumbling
you won't be crumbling
she won't be crumbling
we won't be crumbling
you won't be crumbling
they won't be crumbling	I won't have crumbled
you won't have crumbled
she won't have crumbled
we won't have crumbled
you won't have crumbled
they won't have crumbled	I won't have been crumbling
you won't have been crumbling
she won't have been crumbling
we won't have been crumbling
you won't have been crumbling
they won't have been crumbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I crumble?
will you crumble?
will she crumble?
will we crumble?
will you crumble?
will they crumble? 	will I be crumbling?
will you be crumbling?
will she be crumbling?
will we be crumbling?
will you be crumbling?
will they be crumbling? 	will I have crumbled?
will you have crumbled?
will she have crumbled?
will we have crumbled?
will you have crumbled?
will they have crumbled? 	will I have been crumbling?
will you have been crumbling?
will she have been crumbling?
will we have been crumbling?
will you have been crumbling?
will they have been crumbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
won't I crumble?
won't you crumble?
won't she crumble?
won't we crumble?
won't you crumble?
won't they crumble? 	won't I be crumbling?
won't you be crumbling?
won't she be crumbling?
won't we be crumbling?
won't you be crumbling?
won't they be crumbling? 	won't I have crumbled?
won't you have crumbled?
won't she have crumbled?
won't we have crumbled?
won't you have crumbled?
won't they have crumbled? 	won't I have been crumbling?
won't you have been crumbling?
won't she have been crumbling?
won't we have been crumbling?
won't you have been crumbling?
won't they have been crumbling?