Hello. I would be very grateful for some help.

1) Do you think the preposition "in" is OK in the following sentence or is it "after": "He knew he would return in a year"?
2) If a person left a building or a room, is it possible to say: "he came out of the hotel (room)" or "he went out of the hotel (room)"? If yes, is there any difference in meaning?
Thank you for all your great work.

#1 -- Will he return within a calendar year? If so, use "in." Or will he return sometime after a calendar year is over? If so, use "after."

#2 -- Technically, you'd use "came" if you (the speaker) were outside the room and saw him come out. Or you'd use "went" if you were inside the room and saw him go out.

Writeacher is correct. I would add that if the person intends to return after the elapse of one year, you would say in a year, as in the case of he might intend to return on or about December 27, 2016. If it is a vague promise to return sometime after the elapse of a year, after December 27, 2016, after is a better word choice.

I would suggest that 'within' is the best option of all .

He knew he would return within a year

Hello! I'm here to help you. Let's address your questions one by one:

1) Regarding the use of the preposition "in" or "after" in the sentence "He knew he would return in a year," both options can be valid depending on the intended meaning.

If you use "in," it implies that the person will return at some point during the year. For example, if they leave in January, they expect to be back before or by the following January.

On the other hand, if you use "after," it suggests that the person will return exactly one year later. They will come back exactly 365 days after they left.

So, it's essential to consider the context and the specific meaning you want to convey when choosing between "in" and "after" in this sentence.

2) When someone leaves a building or a room, both "he came out of the hotel (room)" and "he went out of the hotel (room)" are grammatically correct and can be used interchangeably.

The phrase "he came out of the hotel (room)" emphasizes the person's movement relative to your current location. It implies that this person was inside the hotel or room, and they exited to where you are.

On the other hand, "he went out of the hotel (room)" is more focused on the person's movement away from their previous location. It suggests that the person was inside the hotel or room and moved away from it, possibly to an external location such as the lobby or another nearby place.

In terms of meaning, the difference is subtle and mostly depends on the perspective or frame of reference you want to emphasize.

I hope this clarifies your questions. If you have any more, feel free to ask!