hanamaru
Say something becomes or changes
This pattern says something becomes or turns into a new state.
JLPTN5
noun / な-adjective + になる~ ni naru
something becomes [new state]
Put a noun or a な-adjective in front of になる to show a change of state — becoming something. With な-adjectives you drop the な and add になる. For い-adjectives you use くなる instead, so match the ending to the word type.
Tips and Common Traps
Hana· Key point
Use になる whenever something shifts from one state to another — seasons change, people grow up, feelings shift. It's one of the most natural ways to describe change.
Maru· Common trap
い-adjectives do NOT use になる — they use 〜くなる. So 寒くなる (get cold), not 寒いになる.