Spelling Rule-13: Use of /ch/

As earlier discussed, /K/ needs back support (Spelling Rule-12.2). Similarly, /CH/ needs back support.

two vowels + ch

consonant + ch

Spelling Rule 13.1: If the final ‘ch’ sound comes after two letter vowel, the ending
is -ch.

vowel + vowel + ch

Examples:

beach, teach, crouch, touch, speech

Spelling Rule 13.2: If the final ‘ch’ sound comes after a consonant, the ending
is -ch.

consonant + ch

Examples:

search, church, branch, finch

Spelling Rule 13.3: If the final ‘ch’ sound comes only after a vowel, the ending is -tch. (Silent t comes to support -ch)

consonant + ch

Examples:

fetch, catch pitch watch dispatch

But, the exceptions are below:

Attach, much, sandwich, which, detach, ostrich, Spinach, enrich, rich, such