The past tense of get a slap on the wrist is got a slap on the wrist.

The third-person singular simple present indicative form of get a slap on the wrist is gets a slap on the wrist.

The present participle of get a slap on the wrist is getting a slap on the wrist.

The past participle of get a slap on the wrist is got a slap on the wrist.