There is a distinction between boos (2SG) and botus (2PL or 2nd person polite).
It is also possible to avoid a pronoun and use a noun to refer to the addressee, as in Example 34. This strategy is possible in Tamil and is common in Sinhala, where pronoun choice can be problematic.
Source: Smith 1974-5: 5298
Source: Smith 1974-5: passim
Source: Smith 1974-5: 5567
Source: Smith 1974-5: 4061
Source: Smith 1974-5: 2818