Page 38 - Prep Demo

depending on how they are used some words can be either prepositions or adverbs - such as...
in on out over up down on off
The alien looked out of the window.
there is an object after out - the noun window so in this case out is a preposition
The alien looked out.
there is no object after out
so in this case out is not a preposition -
it is an adverb
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