In Indonesian, 'mandi' means 'to bathe' or 'to shower'. The verb 2, or past tense form, of 'mandi' is 'mandi'. Indonesian doesn't conjugate verbs for tense in the same way as English. Therefore, to indicate that the action of bathing occurred in the past, you would typically use 'sudah mandi' (already bathed) or include a time reference, such as 'kemarin saya mandi' (yesterday I bathed). Understanding this concept is essential for correct Indonesian grammar.