What part of speech is ending -tch?

"Ending -tch" is not a part of speech itself. It's a suffix, which is a word part added to the end of a word to change its meaning or grammatical function.

Here's how it works:

* Suffixes modify the base word. They can indicate:

* Noun: "catch" + "-er" = "catcher"

* Verb: "stretch" + "-ed" = "stretched"

* Adjective: "soft" + "-ly" = "softly"

* Adverb: "quick" + "-ly" = "quickly"

* Other grammatical functions: "friend" + "-ship" = "friendship"

* The suffix "-tch" specifically forms nouns and verbs:

* Nouns: "sketch", "stitch", "watch"

* Verbs: "catch", "fetch", "stretch"

Therefore, "ending -tch" is a suffix, and it can be used to create nouns and verbs.