Because they cannot be used alone in a word, but must be connected with a Vowel.
38. How many kinds of Consonants are there?
Two; single Letters and Combinations.
39. Name the Consonant letters.
B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W, X, Y, and Z.
40. Name the Consonant Combinations.
Th, Sh, Ch, Zh, Wh, and Ng.
41. Name the two Orders of the Consonants.
Mutes and Semi-vowels.
42. What are Mutes?