"Chan eil dà mhuc agam."
Translation:I do not have two pigs.
as explained in the 'tips' section, the numbers 1 and 2 lenite (add a h sound after a consonant) whenever it is possible.
e.g. bàta - boat vs. aon bhàta one boat
These consonants can lenite: p, b, c, g, t, d, m, s, f.
words also lenite in the vocative (when speaking directly to someone)
e.g. caraid - friend vs. a charaid - Oi, friend
1 and 2 also both take the singular form of a noun because Gàidhlig used to have a dual form (for exactly 2 of something) but it merged with the singular.
e.g. aon charaid - one friend and dà charaid - two friends vs. mòran caraidean - many friends. (again, note the lenition)