can hollow
Regular verb: hollow - hollowed- hollowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can hollow
you can hollow
he can hollow
we can hollow
you can hollow
they can hollow 	I can be hollowing
you can be hollowing
he can be hollowing
we can be hollowing
you can be hollowing
they can be hollowing	I can have hollowed
you can have hollowed
he can have hollowed
we can have hollowed
you can have hollowed
they can have hollowed	I can have been hollowing
you can have been hollowing
he can have been hollowing
we can have been hollowing
you can have been hollowing
they can have been hollowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't hollow
you can't hollow
he can't hollow
we can't hollow
you can't hollow
they can't hollow 	I can't be hollowing
you can't be hollowing
he can't be hollowing
we can't be hollowing
you can't be hollowing
they can't be hollowing	I can't have hollowed
you can't have hollowed
he can't have hollowed
we can't have hollowed
you can't have hollowed
they can't have hollowed	I can't have been hollowing
you can't have been hollowing
he can't have been hollowing
we can't have been hollowing
you can't have been hollowing
they can't have been hollowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I hollow?
can you hollow?
can he hollow?
can we hollow?
can you hollow?
can they hollow? 	can I be hollowing?
can you be hollowing?
can he be hollowing?
can we be hollowing?
can you be hollowing?
can they be hollowing? 	can I have hollowed?
can you have hollowed?
can he have hollowed?
can we have hollowed?
can you have hollowed?
can they have hollowed? 	can I have been hollowing?
can you have been hollowing?
can he have been hollowing?
can we have been hollowing?
can you have been hollowing?
can they have been hollowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I hollow?
can't you hollow?
can't he hollow?
can't we hollow?
can't you hollow?
can't they hollow? 	can't I be hollowing?
can't you be hollowing?
can't he be hollowing?
can't we be hollowing?
can't you be hollowing?
can't they be hollowing? 	can't I have hollowed?
can't you have hollowed?
can't he have hollowed?
can't we have hollowed?
can't you have hollowed?
can't they have hollowed? 	can't I have been hollowing?
can't you have been hollowing?
can't he have been hollowing?
can't we have been hollowing?
can't you have been hollowing?
can't they have been hollowing?