can flow
Regular verb: flow - flowed- flowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can flow
you can flow
he can flow
we can flow
you can flow
they can flow 	I can be flowing
you can be flowing
he can be flowing
we can be flowing
you can be flowing
they can be flowing	I can have flowed
you can have flowed
he can have flowed
we can have flowed
you can have flowed
they can have flowed	I can have been flowing
you can have been flowing
he can have been flowing
we can have been flowing
you can have been flowing
they can have been flowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't flow
you can't flow
he can't flow
we can't flow
you can't flow
they can't flow 	I can't be flowing
you can't be flowing
he can't be flowing
we can't be flowing
you can't be flowing
they can't be flowing	I can't have flowed
you can't have flowed
he can't have flowed
we can't have flowed
you can't have flowed
they can't have flowed	I can't have been flowing
you can't have been flowing
he can't have been flowing
we can't have been flowing
you can't have been flowing
they can't have been flowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I flow?
can you flow?
can he flow?
can we flow?
can you flow?
can they flow? 	can I be flowing?
can you be flowing?
can he be flowing?
can we be flowing?
can you be flowing?
can they be flowing? 	can I have flowed?
can you have flowed?
can he have flowed?
can we have flowed?
can you have flowed?
can they have flowed? 	can I have been flowing?
can you have been flowing?
can he have been flowing?
can we have been flowing?
can you have been flowing?
can they have been flowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I flow?
can't you flow?
can't he flow?
can't we flow?
can't you flow?
can't they flow? 	can't I be flowing?
can't you be flowing?
can't he be flowing?
can't we be flowing?
can't you be flowing?
can't they be flowing? 	can't I have flowed?
can't you have flowed?
can't he have flowed?
can't we have flowed?
can't you have flowed?
can't they have flowed? 	can't I have been flowing?
can't you have been flowing?
can't he have been flowing?
can't we have been flowing?
can't you have been flowing?
can't they have been flowing?