In the sentence "My work was praised" the verb is in the passive form
Mo lefokong le "Mošomo wa ka o retilwe", lediri le ka tirwa
The passive form of "A snake bit her." is "She was bitten by a snake."
Tirwa ya "Noga e mo lomile." ke "O lomilwe ke noga."
describing a sentence in which the person, animal or thing undergoing the action is the subject of the sentence or verb