• Basic forms
• 並ぶ — line up; stand in a row / base form
• 並びます — line up / masu form
• 並んだ — lined up / ta form
• 並んで — line up and … / te form
• 並ばない — do not line up / negative
• 並べば — if (they) line up / conditional
• Common expressions
• 店の前に並ぶ — line up in front of a shop
• 人が並んでいる — people are lined up

並ぶ（ならぶ） is a godan verb. It describes people or things **lining up or standing side by side by themselves**. It is the intransitive partner of 並べる.

• Basic forms
• 並べる — line up; arrange; set side by side / base form
• 並べます — arrange / masu form
• 並べた — arranged / ta form
• 並べて — arrange and … / te form
• 並べない — do not arrange / negative
• 並べれば — if (you) arrange / conditional
• Common expressions
• 椅子を並べる — arrange chairs
• 商品を並べる — line up products

並べる（ならべる） is an ichidan verb. It means **to actively arrange or line something up**. It is the transitive counterpart of 並ぶ.