English verb conjugation
CAN SOLFA

Regular verb: solfa - solfaed - solfaed

Affirmation

Simple form	V-ing form
I can solfa you can solfa she can solfa we can solfa you can solfa they can solfa	I can be solfaing you can be solfaing she can be solfaing we can be solfaing you can be solfaing they can be solfaing
Perfect	V-ing perfect
I can have solfaed you can have solfaed she can have solfaed we can have solfaed you can have solfaed they can have solfaed	I can have been solfaing you can have been solfaing she can have been solfaing we can have been solfaing you can have been solfaing they can have been solfaing

Negation

Simple form	V-ing form
I cannot solfa you cannot solfa she cannot solfa we cannot solfa you cannot solfa they cannot solfa	I cannot be solfaing you cannot be solfaing she cannot be solfaing we cannot be solfaing you cannot be solfaing they cannot be solfaing
Perfect	V-ing perfect
I cannot have solfaed you cannot have solfaed she cannot have solfaed we cannot have solfaed you cannot have solfaed they cannot have solfaed	I cannot have been solfaing you cannot have been solfaing she cannot have been solfaing we cannot have been solfaing you cannot have been solfaing they cannot have been solfaing

Interrogative form

Simple form	V-ing form
can I solfa? can you solfa? can she solfa? can we solfa? can you solfa? can they solfa?	can I be solfaing? can you be solfaing? can she be solfaing? can we be solfaing? can you be solfaing? can they be solfaing?
Perfect	V-ing perfect
can I have solfaed? can you have solfaed? can she have solfaed? can we have solfaed? can you have solfaed? can they have solfaed?	can I have been solfaing? can you have been solfaing? can she have been solfaing? can we have been solfaing? can you have been solfaing? can they have been solfaing?

Interro-negative form

Simple form	V-ing form
can I not solfa? can you not solfa? can she not solfa? can we not solfa? can you not solfa? can they not solfa?	can I not be solfaing? can you not be solfaing? can she not be solfaing? can we not be solfaing? can you not be solfaing? can they not be solfaing?
Perfect	V-ing perfect
can I not have solfaed? can you not have solfaed? can she not have solfaed? can we not have solfaed? can you not have solfaed? can they not have solfaed?	can I not have been solfaing? can you not have been solfaing? can she not have been solfaing? can we not have been solfaing? can you not have been solfaing? can they not have been solfaing?