> I'm very impressed that anyone who speaks another language natively can get good at it.

From my completely anecdotal observations, native speakers are the worst at English. They struggle with homophones, prepositions, tenses, confuse meanings of words, apostrophes and I could go on and on.

English grammar is easier to learn by reading and writing than speaking, what most native speakers do.

Its/it's, they/their/they're, who's/whose, prepositions like a lot, a while and confused words like definitely and defiantly are the first that come to mind. See if you are better than a foreigner.

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InsideOutSanta 6 hours ago | parent [-]

As an example of this, native German speakers are often better at knowing when to use "who" vs "whom" because German grammar rules are in some ways a superset of English grammar rules.

	▲	aleph_minus_one an hour ago \| parent [-]
		You don't have to refer to German grammar since the English grammar in this case contains all necessary ingredients; there is inflection depending on the case: You don't say "You give I the apple.", but "You give me the apple." (similar for he, she, we, they), i.e. the pronoun is inflected depending on whether it is subject or object, so English speakers are perfectly aware on the difference between subject and object. When you refer to the subject, you use "who" and when you refer to the object, you use "whom".