English verb conjugation
CAN OVERFLOW

Regular verb: overflow - overflowed - overflowed

Affirmation

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