when
Attested in Example 1.2 (ma-a-an), Example 1.4 (ma-a-an-kán), Example 1.7 (ma-a-an-mu), Example 3.8 (ma-a-an-kán), Example 3.15 (ma-a-an-mu), Example 4.06 (ma-a-an), Example 4.12 (ma-a-an), Example 5.08 (ma-a-an)