Main spellings (~95%)
⟨ch⟩ ~87%
The standard spelling for the /ʧ/ sound.
⟨tch⟩ ~8%
After short vowels, use ⟨tch⟩ instead of ⟨ch⟩.
CH vs TCH rule: After a short vowel, use ⟨tch⟩: watch, match, catch, kitchen. After a consonant, long vowel, or at the start of a word, use ⟨ch⟩: church, much, each, teach, check.