〜ともなると
when it becomes ~
Show that a state, habit, skill, or situation has changed over time.
Remember it
Picture a before and after, then mark the change with 〜ともなると.
Understand
Build the pattern
Sentence formula
How it works
「〜ともなると」 means "when it becomes ~". Structure: Noun + ともなると. This is a JLPT N1 pattern — the examples below slot different everyday and workplace words into the same structure so you can see how it behaves. Learn the structure, then swap in your own words.
When to use it
Use it for progress, new habits, changing conditions, and life updates.
Tone: Neutral
A general pattern; let the sentence ending and situation set the politeness level.
Use
Hear it in real life
Getting around
Example 1繁忙期ともなると、採決が倍増する。
はんぼうき と も なる と、さいけつ が ばいぞう する。
hanbouki to mo naru to, saiketsu ga baizou suru.
Come the busy season, the vote doubles.
Getting around
Example 2繁忙期ともなると、買収が倍増する。
はんぼうき と も なる と、ばいしゅう が ばいぞう する。
hanbouki to mo naru to, baishuu ga baizou suru.
Come the busy season, the acquisition doubles.
Getting around
Example 3繁忙期ともなると、志願が倍増する。
はんぼうき と も なる と、しがん が ばいぞう する。
hanbouki to mo naru to, shigan ga baizou suru.
Come the busy season, the volunteering doubles.
Getting around
Example 4繁忙期ともなると、転載が倍増する。
はんぼうき と も なる と、てんさい が ばいぞう する。
hanbouki to mo naru to, tensai ga baizou suru.
Come the busy season, the reprinting doubles.
Getting around
Example 5繁忙期ともなると、滞納が倍増する。
はんぼうき と も なる と、たいのう が ばいぞう する。
hanbouki to mo naru to, tainou ga baizou suru.
Come the busy season, the payment arrears doubles.
Make it yours
Choose one example. Replace one person, place, object, or time with a detail from your life, then say the new sentence aloud.
Recall
Test your memory
Recall practice
Can you say it?
1 of 5
Read the situation, look away from the answer, and say the Japanese aloud.
Your situation
Come the busy season, the vote doubles.
The answer is hidden. Try to use 〜ともなると.
Remember tomorrow
Save this pattern as a flashcard
Review the meaning and formula later so today’s lesson moves into long-term memory.