手伝う

1. Origins, structure, and basic meaning

• Structure: 手伝う is read as てつだう and is a verb for helping with someone’s work or for a circumstance contributing to an outcome.
• Basic usage: Use 夕食作りを手伝う for assisting with a task and 雨も手伝って for rain contributing to growth.

2. Common pitfalls and similar expressions

• Intentional help and contributing conditions
  • A person can help deliberately, whereas rain has no intention and is presented as a favorable contributing condition.
• Choice of object
  • 母を手伝う identifies the person helped, while 母の夕食作りを手伝う identifies the specific task.