汤姆不想的话他是没必要留下的。

Tom didn't need to stay if he didn't want to.

Source: Tatoeba

Sentence Composition

1 汤姆 Tāngmǔ Tom (name)
2 不想 bùxiǎng unexpectedly; to one's surprise
3 的话 dehuà if (coming after a conditional clause)
4 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
=5 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=5 是 shì variant of 是 shì
=6 没 méi (negative prefix for verbs) have not; not
=6 没 mò
  1. drowned
  2. to end
  3. to die
  4. to inundate
7 必要 bìyào
  1. necessary
  2. essential
  3. indispensable
  4. required
8 留下 liúxià
  1. to leave behind
  2. to stay behind
  3. to remain
  4. to keep
  5. not to let (sb) go
=9 的 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. dì or di in poetry and songs
=9 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=9 的 dí really and truly
=9 的 dì (bound form) bull's-eye; target