Which sentence is right?
This is right(but somewhat unnatural).
This is wrong(Even so most native speakers would understand what you mean).
This is because 必要 is not a verb.
The sentence @user3856370 wrote:
It seems like you are assuming that the pattern
OBJECT を VERB will translate to
SUBJECT VERB OBJECT in English and similarly that
SUBJECT が VERB equates to
SUBJECT is(are,be) ADJECTIVE or
SUBJECT is(are,be) NOUN, right?
I am not really understanding what you mean by "verb" in your question.
Should You use
です is optional in terms of grammar, but I feel that adding
です is better.
です impresses listeners politeness or objectivity.
Moreover, in this sentence, you might be trying to ask for a favor or persuade someone to do something. Especially in these cases, adding
です is better since it is more polite.
Thus, I would suggest:
IS having two を-particles allowed?
For example, the sentence
何か を 食べること を やめた
NOUN(SUBJECT) を VERB →
OBJECT VERB NOUN(SUBJECT) rule,
There are two candidates for parsing this:
- ((何か を 食べる) を 必要)
- (何か を (食べる を 必要))
食べる を 必要 is
VERB を ADJECTIVE.
This way of parsing it is not grammatical, thus candidate 2 is invalid.
何か を 食べる is
SUBJECT を VERB.
This is grammatical and a complete sentence.
((何か を 食べる) を 必要) is
SENTENCE を ADJECTIVE.
This is not grammatical, thus candidate 1 is invalid.