As in, the person you saw on that bicycle; they are not on this forum.
But why 'they' if it's a singular person. I never got that about the English language.
Singular they
I had no idea! Always associated 'they' with a multitude of people. You learn something new every day.
@deleted started
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But why 'they' if it's a singular person. I never got that about the English language.