can overflow
Regular verb: overflow - overflowed- overflowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can overflow
you can overflow
he can overflow
we can overflow
you can overflow
they can overflow 	I can be overflowing
you can be overflowing
he can be overflowing
we can be overflowing
you can be overflowing
they can be overflowing	I can have overflowed
you can have overflowed
he 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
he 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
he cannot overflow
we cannot overflow
you cannot overflow
they cannot overflow 	I cannot be overflowing
you cannot be overflowing
he cannot be overflowing
we cannot be overflowing
you cannot be overflowing
they cannot be overflowing	I cannot have overflowed
you cannot have overflowed
he 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
he 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 he overflow?
can we overflow?
can you overflow?
can they overflow? 	can I be overflowing?
can you be overflowing?
can he be overflowing?
can we be overflowing?
can you be overflowing?
can they be overflowing? 	can I have overflowed?
can you have overflowed?
can he 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 he 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 he 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 he 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 he 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 he not have been overflowing?
can we not have been overflowing?
can you not have been overflowing?
can they not have been overflowing?