<prompt> Fumana leetsi le sa nepahalang la leetsi polelong ena: O ne a sesa ka letamong.nan  <response>: Instruction in English: Find incorrect verb tense in this sentence: He was swimming in a pool. . Response in English: The verb tense in that sentence He was swimming in a pool is not incorrect. It is in the past continuous tense, indicating an ongoing action that was happening in the past. . Response in Sesotho: Leetsi la leetsi polelong eo O ne a sesa letamong ha lea nepahala. Ke nakong e fetileng e tsoelang pele, e bontšang ketso e tsoelang pele e neng e etsahala nakong e fetileng. 