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 cannot overflow
you cannot overflow
she cannot overflow
we cannot overflow
you cannot overflow
they cannot overflow 	I cannot be overflowing
you cannot be overflowing
she cannot be overflowing
we cannot be overflowing
you cannot be overflowing
they cannot be overflowing	I cannot have overflowed
you cannot have overflowed
she cannot have overflowed
we cannot have overflowed
you cannot have overflowed
they cannot have overflowed	I cannot have been overflowing
you cannot have been overflowing
she cannot have been overflowing
we cannot have been overflowing
you cannot have been overflowing
they cannot 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 I not overflow?
can you not overflow?
can she not overflow?
can we not overflow?
can you not overflow?
can they not overflow? 	can I not be overflowing?
can you not be overflowing?
can she not be overflowing?
can we not be overflowing?
can you not be overflowing?
can they not be overflowing? 	can I not have overflowed?
can you not have overflowed?
can she not have overflowed?
can we not have overflowed?
can you not have overflowed?
can they not have overflowed? 	can I not have been overflowing?
can you not have been overflowing?
can she not have been overflowing?
can we not have been overflowing?
can you not have been overflowing?
can they not have been overflowing?