Maximum syllable CV
[p]
[k]
[?]
[h]
[l]
[m]
[n]
[w]
Each vowel has a long and a short version. Note the quality of the vowel does not change as it lengthens: think of it as duration rather than lenght if that helps you.
[i] [i:]
[e] [e:]
[a] [a:]
[u] [u:]
[o] [o:]