Problems about the omission of relative pronouns.

[Wanderer]

I work in a company that makes car and I work for a company making car. What's the correct sentence or both? Can you give me some more examples?
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[Jamie (K)]

"I work for a company that makes cars," means that the company makes cars.

"I work for a company making cars," means that "I" make cars for the company.

[Nevermind]

I work for a company making cars => I work for a company which is making cars.

[Wanderer]

Too confusing! Some books say it's impossible to omit relative pronouns which are subjects of relative clauses.
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[Wanderer]

Too confusing! Some books say it's impossible to omit relative pronouns which are subjects of relative clauses. But besides, they say some still can be possible. For example, The boy living next door is my best friend.
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[Nevermind]

Who/Which/That can be omitted when it is the object of the relative clause, that is when there is a noun or subject pronoun between the relative pronoun and the verb.

e.g. I spoke to a man. I had met him before = I spoke to a man (who/that) I had met before. (The relative pronoun is the object)
That the book. I read it last summer = There is the book (which/that) I read last summer. (The relative pronoun is the object)

Who/Which/That can not be omitted if it is the subject of the relative clause, that is when there is not a noun or subject pronoun between the relative pronoun and the verb.
e.g. I know a man. He is a lawyer -> I know a man who/that is a lawyer.

grammarway 3

[Wanderer]

You mean just when relative clauses lie in between the sentence can I omit the relative pronouns? For example, the boy living in that small house is a millionaire is possible but i know the boy being a millionaire is impossible?
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