'know of' is used when you have personal experience with wha. If you know about a subject, you have studied it or taken an interest in it, and understand part or all of it Hire someone with experience, someone who knows about real estate. Possibly, i do know that can in fact only be used, when, you are answering the question of whether or not you know the issue at hand (or your knowledge has been called in to question, and you are answering that challenge) Possible duplicate of know about vs Also what are the differences between “know”, “know about”, and “know of”
On english language learners, which is probably a better site for questions like this. The sentence i'm writing goes like this But the words know and now are so similar that every time i read. Can anyone give use cases and examples for happen to know came to know got to know came across i always gets confused in their uses. In (2), however, the object of know is not indicated, as you point out, so something must be provided. Alright, well, for example, like on saturdays, y’know, what i liked to do.
Can it be used in formal conversation/writing? Therefore, saying did you know asks if you have previously known something Do is the present tense, so saying do you know would ask if you currently know.
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