English verb conjugation
CAN FOAM

Regular verb: foam - foamed - foamed

Affirmation

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