English verb conjugation
CAN SOUR

Regular verb: sour - soured - soured

Affirmation

Simple form	V-ing form
I can sour you can sour she can sour we can sour you can sour they can sour	I can be souring you can be souring she can be souring we can be souring you can be souring they can be souring
Perfect	V-ing perfect
I can have soured you can have soured she can have soured we can have soured you can have soured they can have soured	I can have been souring you can have been souring she can have been souring we can have been souring you can have been souring they can have been souring

Negation

Simple form	V-ing form
I can't sour you can't sour she can't sour we can't sour you can't sour they can't sour	I can't be souring you can't be souring she can't be souring we can't be souring you can't be souring they can't be souring
Perfect	V-ing perfect
I can't have soured you can't have soured she can't have soured we can't have soured you can't have soured they can't have soured	I can't have been souring you can't have been souring she can't have been souring we can't have been souring you can't have been souring they can't have been souring

Interrogative form

Simple form	V-ing form
can I sour? can you sour? can she sour? can we sour? can you sour? can they sour?	can I be souring? can you be souring? can she be souring? can we be souring? can you be souring? can they be souring?
Perfect	V-ing perfect
can I have soured? can you have soured? can she have soured? can we have soured? can you have soured? can they have soured?	can I have been souring? can you have been souring? can she have been souring? can we have been souring? can you have been souring? can they have been souring?

Interro-negative form

Simple form	V-ing form
can't I sour? can't you sour? can't she sour? can't we sour? can't you sour? can't they sour?	can't I be souring? can't you be souring? can't she be souring? can't we be souring? can't you be souring? can't they be souring?
Perfect	V-ing perfect
can't I have soured? can't you have soured? can't she have soured? can't we have soured? can't you have soured? can't they have soured?	can't I have been souring? can't you have been souring? can't she have been souring? can't we have been souring? can't you have been souring? can't they have been souring?