If you're planning to learn Japanese, it's essential to start by learning some basic Japanese phrases. Not only will it help you communicate with native speakers, but it will also make your language-learning journey smoother. Here are the top 10 most common Japanese phrases for beginners:

1. こんにちは (Konnichiwa) This is a common Japanese greeting that means "hello" or "good afternoon." You can use it when meeting someone for the first time or entering a shop.

2. ありがとう (Arigatou) This is a simple way of saying "thank you" in Japanese. Use it when someone does something nice for you or gives you a gift.

3. すみません (Sumimasen) This phrase means "excuse me" or "I'm sorry." Use it when you bump into someone or want to get someone's attention.

4. おはようございます (Ohayou gozaimasu) This is a formal greeting that means "good morning." It's commonly used in professional settings or when greeting elders.

5. さようなら (Sayonara) This is a formal way of saying "goodbye." It's often used when leaving a place or ending a conversation.

6. はい (Hai) This is the Japanese word for "yes." It's a simple way to confirm something or agree with someone.

7. いいえ (Iie) This is the Japanese word for "no." Use it to decline something or disagree with someone.

8. お願いします (Onegaishimasu) This phrase can be translated as "please" or "I request." Use it when asking for something or making a request.

9. どういたしまして (Douitashimashite) This is a polite way of saying "you're welcome" in Japanese. Use it when someone thanks you for something.

10. 失礼します (Shitsurei shimasu) This phrase means "excuse me" or "I'm sorry to interrupt." Use it when entering or leaving a room, or when you need to interrupt someone.

These phrases are essential to any Japanese language learner. Start by practicing them in your daily life, and you'll be on your way to communicating effectively in Japanese. Don't forget to practice your pronunciation and intonation, as it can significantly affect how well you're understood. Happy learning!