can frill
Regular verb: frill - frilled- frilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can frill
you can frill
he can frill
we can frill
you can frill
they can frill 	I can be frilling
you can be frilling
he can be frilling
we can be frilling
you can be frilling
they can be frilling	I can have frilled
you can have frilled
he can have frilled
we can have frilled
you can have frilled
they can have frilled	I can have been frilling
you can have been frilling
he can have been frilling
we can have been frilling
you can have been frilling
they can have been frilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't frill
you can't frill
he can't frill
we can't frill
you can't frill
they can't frill 	I can't be frilling
you can't be frilling
he can't be frilling
we can't be frilling
you can't be frilling
they can't be frilling	I can't have frilled
you can't have frilled
he can't have frilled
we can't have frilled
you can't have frilled
they can't have frilled	I can't have been frilling
you can't have been frilling
he can't have been frilling
we can't have been frilling
you can't have been frilling
they can't have been frilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I frill?
can you frill?
can he frill?
can we frill?
can you frill?
can they frill? 	can I be frilling?
can you be frilling?
can he be frilling?
can we be frilling?
can you be frilling?
can they be frilling? 	can I have frilled?
can you have frilled?
can he have frilled?
can we have frilled?
can you have frilled?
can they have frilled? 	can I have been frilling?
can you have been frilling?
can he have been frilling?
can we have been frilling?
can you have been frilling?
can they have been frilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I frill?
can't you frill?
can't he frill?
can't we frill?
can't you frill?
can't they frill? 	can't I be frilling?
can't you be frilling?
can't he be frilling?
can't we be frilling?
can't you be frilling?
can't they be frilling? 	can't I have frilled?
can't you have frilled?
can't he have frilled?
can't we have frilled?
can't you have frilled?
can't they have frilled? 	can't I have been frilling?
can't you have been frilling?
can't he have been frilling?
can't we have been frilling?
can't you have been frilling?
can't they have been frilling?