shall cavern
Regular verb: cavern - caverned- caverned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll cavern
you'll cavern
she'll cavern
we'll cavern
you'll cavern
they'll cavern 	I'll be caverning
you'll be caverning
she'll be caverning
we'll be caverning
you'll be caverning
they'll be caverning	I'll have caverned
you'll have caverned
she'll have caverned
we'll have caverned
you'll have caverned
they'll have caverned	I'll have been caverning
you'll have been caverning
she'll have been caverning
we'll have been caverning
you'll have been caverning
they'll have been caverning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't cavern
you shan't cavern
she shan't cavern
we shan't cavern
you shan't cavern
they shan't cavern 	I shan't be caverning
you shan't be caverning
she shan't be caverning
we shan't be caverning
you shan't be caverning
they shan't be caverning	I shan't have caverned
you shan't have caverned
she shan't have caverned
we shan't have caverned
you shan't have caverned
they shan't have caverned	I shan't have been caverning
you shan't have been caverning
she shan't have been caverning
we shan't have been caverning
you shan't have been caverning
they shan't have been caverning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I cavern?
shall you cavern?
shall she cavern?
shall we cavern?
shall you cavern?
shall they cavern? 	shall I be caverning?
shall you be caverning?
shall she be caverning?
shall we be caverning?
shall you be caverning?
shall they be caverning? 	shall I have caverned?
shall you have caverned?
shall she have caverned?
shall we have caverned?
shall you have caverned?
shall they have caverned? 	shall I have been caverning?
shall you have been caverning?
shall she have been caverning?
shall we have been caverning?
shall you have been caverning?
shall they have been caverning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I cavern?
shan't you cavern?
shan't she cavern?
shan't we cavern?
shan't you cavern?
shan't they cavern? 	shan't I be caverning?
shan't you be caverning?
shan't she be caverning?
shan't we be caverning?
shan't you be caverning?
shan't they be caverning? 	shan't I have caverned?
shan't you have caverned?
shan't she have caverned?
shan't we have caverned?
shan't you have caverned?
shan't they have caverned? 	shan't I have been caverning?
shan't you have been caverning?
shan't she have been caverning?
shan't we have been caverning?
shan't you have been caverning?
shan't they have been caverning?