Why does chairs not have an apostrophe?

Chair’s here shortens chair is, but there’s no apostrophe for its, because we’re not saying it is or it has. There’s a semi-colon for the run-on sentence.

Does legs have an apostrophe?

If the word is singular, add an apostrophe and the letter s. IF “tables legs” means “legs of the table,” you would write “the table’s legs.” Yes, according to modern usage, which says that a singular noun ending in s needs only the apostrophe.

Is it correct to say the chair leg is broken?

The chair’s leg is broken is grammatically correct — it’s the correct use of possessive. However, the regular native English phraseology would be to turn the “chair’s leg” into a single entity:— The chair leg is broken. The front door of the factory… = The factory front door…

What part of the sentence is ‘with a broken leg’?

Now, let’s break the sentence into two parts: ‘I sat on a chair’ and ‘with a broken leg’. The former part is the actual sentence and the latter part is only a modifier giving additional information. Thus, for the fact that the latter ( ‘ with a broken leg ‘) is a modifier, we can place it in any part of the sentence.

How do you say I sat on a broken leg?

If the leg of the chair is broken, perhaps use “The chair I sat on had a broken leg”, if your leg is broken, perhaps use “I sat on a chair, my broken leg stretched out comfortably/uncomfortably’. Since you used ‘a broken leg’ in your initial sentence, it can also read that you have broken one of your legs and have sat down on a chair.

Is it correct to say that a chair has four legs?

Your sentences are both grammatically and semantically correct. Your teacher’s definition of possession is too narrow. We say that a chair has or possesses four legs. This is allowed under the definition of “possess” – look it up and document it for your teacher. Therefore, the possessive “‘s” form is appropriate.

https://www.youtube.com/watch?v=MESwb94Wj80