Noun ともなると

When to use

ともなると: once X reaches that level (大学生ともなると).

Explanation

Noun + ともなると indicates a change of state or circumstances once that noun becomes relevant or once one attains that position. It conveys that 'once it’s X, things change' or 'when it comes to X...'.

• クリスマスともなると、街がい中なかがきらきらと輝かがやいて見みえます。

  When it comes to Christmas time, the whole city sparkles.

  Kurisumasu to mo naru to, machijuu ga kirakira to kagayaite miemasu.

• 子供こどもが自分じぶんの過あやまちを認みとめるともなると、話はなしは別べつですね。

  When a child admits their mistake, that’s a different story.

  Kodomo ga jibun no ayamachi o mitomeru to mo naru to, hanashi wa betsu desu ne.

• 夏休なつやすみともなると、海辺うみべは観光客かんこうきゃくで溢あふれかえります。

  When summer vacation comes, the seaside is filled with tourists.

  Natsu yasumi to mo naru to, umibe wa kankoukyaku de afurekaerimasu.

• 試験しけん週間しゅうかんともなると、図書館としょかんはいつもより混雑こんざつします。

  When exam week arrives, the library gets more crowded than usual.

  Shiken shuukan to mo naru to, toshokan wa itsumo yori konzatsu shimasu.

Conditional (If / Assuming That)

• A。すると B。~surutoN2Indicates that when action A is done, action or event B…
• もし～たならmoshi ~ tanaraN3Express a hypothetical condition, 'if' or 'in case'.
• もしも～ならmoshimo ~ naraN3Express a hypothetical condition or situation; 'if', 'in…
• ～からには〜kara niwaN2Express a sense of responsibility or determination…
• ～とあれば〜to arebaN1Expresses a condition; 'if', 'when', 'since'.
• ～とすると〜to suru toN1Expresses 'if', 'when', or 'assuming that' in a…
• Noun ともなれば〜to mo narebaN1Expresses 'if it comes to', 'when', or 'once'.
• ～上は～ue waN2Expresses 'now that', 'since', or 'once'.
• A。それなら B。A. Sore nara B.N2Express 'if that's the case, then'; used to show a logical…
• ～とすれば～to surebaN1Used to express 'if it were the case that...', 'if we…
• ～となったら〜to nattaraN1Used to express 'if it comes to...', 'when it becomes the…
• ～となると〜to naru toN1Used to highlight a certain circumstance; 'when it comes…
• ～となれば〜to narebaN1Expresses the idea of 'if it comes to...; when we talk…

Compare when to use each