<prompt> Netefatsa hore na polelo e latelang e ka mokgwa o bonolo kapa o phethahetseng: Ke ketekile letsatsi la ka la tswalo.nan  <response>: Instruction in English: Determine if the following sentence is in the simple or the perfect tense: I have celebrated my birthday. . Response in English: The sentence I have celebrated my birthday is in the present perfect tense. . Response in Sesotho: Polelo e reng Ke ketekile letsatsi la ka la tsoalo e maemong a hona joale a phethahetseng. 