


The main difference is that "since" indicates the starting point of an action or state, while "for" indicates the duration of an action or state.
No, "since" and "for" cannot be used interchangeably. They serve different purposes in a sentence and should be used accordingly.
Context matters in English because the meaning of words can vary based on the surrounding words, phrases, or situation. Words often have multiple meanings, and the intended sense becomes clear through the context in which they are used.

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