can overflow
Regular verb: overflow - overflowed- overflowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can overflow
you can overflow
she can overflow
we can overflow
you can overflow
they can overflow 	I can be overflowing
you can be overflowing
she can be overflowing
we can be overflowing
you can be overflowing
they can be overflowing	I can have overflowed
you can have overflowed
she can have overflowed
we can have overflowed
you can have overflowed
they can have overflowed	I can have been overflowing
you can have been overflowing
she can have been overflowing
we can have been overflowing
you can have been overflowing
they can have been overflowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't overflow
you can't overflow
she can't overflow
we can't overflow
you can't overflow
they can't overflow 	I can't be overflowing
you can't be overflowing
she can't be overflowing
we can't be overflowing
you can't be overflowing
they can't be overflowing	I can't have overflowed
you can't have overflowed
she can't have overflowed
we can't have overflowed
you can't have overflowed
they can't have overflowed	I can't have been overflowing
you can't have been overflowing
she can't have been overflowing
we can't have been overflowing
you can't have been overflowing
they can't have been overflowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I overflow?
can you overflow?
can she overflow?
can we overflow?
can you overflow?
can they overflow? 	can I be overflowing?
can you be overflowing?
can she be overflowing?
can we be overflowing?
can you be overflowing?
can they be overflowing? 	can I have overflowed?
can you have overflowed?
can she have overflowed?
can we have overflowed?
can you have overflowed?
can they have overflowed? 	can I have been overflowing?
can you have been overflowing?
can she have been overflowing?
can we have been overflowing?
can you have been overflowing?
can they have been overflowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I overflow?
can't you overflow?
can't she overflow?
can't we overflow?
can't you overflow?
can't they overflow? 	can't I be overflowing?
can't you be overflowing?
can't she be overflowing?
can't we be overflowing?
can't you be overflowing?
can't they be overflowing? 	can't I have overflowed?
can't you have overflowed?
can't she have overflowed?
can't we have overflowed?
can't you have overflowed?
can't they have overflowed? 	can't I have been overflowing?
can't you have been overflowing?
can't she have been overflowing?
can't we have been overflowing?
can't you have been overflowing?
can't they have been overflowing?