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 can't solfa you can't solfa she can't solfa we can't solfa you can't solfa they can't solfa	I can't be solfaing you can't be solfaing she can't be solfaing we can't be solfaing you can't be solfaing they can't be solfaing
Perfect	V-ing perfect
I can't have solfaed you can't have solfaed she can't have solfaed we can't have solfaed you can't have solfaed they can't have solfaed	I can't have been solfaing you can't have been solfaing she can't have been solfaing we can't have been solfaing you can't have been solfaing they can't 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't I solfa? can't you solfa? can't she solfa? can't we solfa? can't you solfa? can't they solfa?	can't I be solfaing? can't you be solfaing? can't she be solfaing? can't we be solfaing? can't you be solfaing? can't they be solfaing?
Perfect	V-ing perfect
can't I have solfaed? can't you have solfaed? can't she have solfaed? can't we have solfaed? can't you have solfaed? can't they have solfaed?	can't I have been solfaing? can't you have been solfaing? can't she have been solfaing? can't we have been solfaing? can't you have been solfaing? can't they have been solfaing?