And start with simpler regular rules and get more complex over time as words are imported and reimported, pronunciations shift, grammatical rules morph and evolve (often to simplify grammatical genders and cases) while leaving their mark, and spelling changes.

For example, goose/geese is the result of the plural form and singular form undergoing different paths in the Great Vowel Shift resulting in the different vowels in the modern form.

There's also evidence that Proto-Indo-European had laryngeal consonants that have disappeared in all modern languages derived from it [1], but have left their mark on the descendant languages.

[1] https://en.wikipedia.org/wiki/Laryngeal_theory

This. A language that doesn't adapt (accumulate shitpile of baggage from other languages over changing times) will be a dead language eventually.

English will always have my respect for being open/inclusive and adaptive.

Interesting fact: If you are looking for a spoken language with the cleanest/composable grammar - it's Sanskrit. The panini grammar is actually like a programming language where sentences are just compositions of lower level similar units.

But like I said it's practically dead (not used as a spoken language). But interestingly used as a proxy language for translation and other nlp tasks due to it's clean grammar :)