can foam
Regular verb: foam - foamed- foamed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can foam
you can foam
he can foam
we can foam
you can foam
they can foam 	I can be foaming
you can be foaming
he can be foaming
we can be foaming
you can be foaming
they can be foaming	I can have foamed
you can have foamed
he can have foamed
we can have foamed
you can have foamed
they can have foamed	I can have been foaming
you can have been foaming
he can have been foaming
we can have been foaming
you can have been foaming
they can have been foaming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot foam
you cannot foam
he cannot foam
we cannot foam
you cannot foam
they cannot foam 	I cannot be foaming
you cannot be foaming
he cannot be foaming
we cannot be foaming
you cannot be foaming
they cannot be foaming	I cannot have foamed
you cannot have foamed
he cannot have foamed
we cannot have foamed
you cannot have foamed
they cannot have foamed	I cannot have been foaming
you cannot have been foaming
he cannot have been foaming
we cannot have been foaming
you cannot have been foaming
they cannot have been foaming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I foam?
can you foam?
can he foam?
can we foam?
can you foam?
can they foam? 	can I be foaming?
can you be foaming?
can he be foaming?
can we be foaming?
can you be foaming?
can they be foaming? 	can I have foamed?
can you have foamed?
can he have foamed?
can we have foamed?
can you have foamed?
can they have foamed? 	can I have been foaming?
can you have been foaming?
can he have been foaming?
can we have been foaming?
can you have been foaming?
can they have been foaming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not foam?
can you not foam?
can he not foam?
can we not foam?
can you not foam?
can they not foam? 	can I not be foaming?
can you not be foaming?
can he not be foaming?
can we not be foaming?
can you not be foaming?
can they not be foaming? 	can I not have foamed?
can you not have foamed?
can he not have foamed?
can we not have foamed?
can you not have foamed?
can they not have foamed? 	can I not have been foaming?
can you not have been foaming?
can he not have been foaming?
can we not have been foaming?
can you not have been foaming?
can they not have been foaming?