What is the correct usage of stole and stolen?

Answer 1

Stole is the past tense of steal. Use it to talk about something in he past that is finished completed.

The dog stole the cat's food.

Stolen is the past participle of steal. Use it to talk about something that began in the past and hasn't changed:

The dog has stolen the cat's food for years.

Or to talk about recent events;

The dog has just stolen the cat's food.

Or to talk about events whose results are evident now:

I see the dog has stolen the cat's food again.

Answer 2

"Stole" is the simple past tense of "steal," used when referring to the action of taking something unlawfully in the past ("He stole my wallet"). "Stolen" is the past participle of "steal," used with auxiliary verbs to form perfect tenses ("The thief has stolen many items").