can billow
Regular verb: billow - billowed- billowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can billow
you can billow
he can billow
we can billow
you can billow
they can billow 	I can be billowing
you can be billowing
he can be billowing
we can be billowing
you can be billowing
they can be billowing	I can have billowed
you can have billowed
he can have billowed
we can have billowed
you can have billowed
they can have billowed	I can have been billowing
you can have been billowing
he can have been billowing
we can have been billowing
you can have been billowing
they can have been billowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't billow
you can't billow
he can't billow
we can't billow
you can't billow
they can't billow 	I can't be billowing
you can't be billowing
he can't be billowing
we can't be billowing
you can't be billowing
they can't be billowing	I can't have billowed
you can't have billowed
he can't have billowed
we can't have billowed
you can't have billowed
they can't have billowed	I can't have been billowing
you can't have been billowing
he can't have been billowing
we can't have been billowing
you can't have been billowing
they can't have been billowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I billow?
can you billow?
can he billow?
can we billow?
can you billow?
can they billow? 	can I be billowing?
can you be billowing?
can he be billowing?
can we be billowing?
can you be billowing?
can they be billowing? 	can I have billowed?
can you have billowed?
can he have billowed?
can we have billowed?
can you have billowed?
can they have billowed? 	can I have been billowing?
can you have been billowing?
can he have been billowing?
can we have been billowing?
can you have been billowing?
can they have been billowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I billow?
can't you billow?
can't he billow?
can't we billow?
can't you billow?
can't they billow? 	can't I be billowing?
can't you be billowing?
can't he be billowing?
can't we be billowing?
can't you be billowing?
can't they be billowing? 	can't I have billowed?
can't you have billowed?
can't he have billowed?
can't we have billowed?
can't you have billowed?
can't they have billowed? 	can't I have been billowing?
can't you have been billowing?
can't he have been billowing?
can't we have been billowing?
can't you have been billowing?
can't they have been billowing?