To say "Good morning" in Japanese, you say: おはようございます
Ohayou gozaimasu

• This is the polite and common way to greet someone in the morning.
• If you are speaking casually to close friends or family, you can simply say:
  おはよう (Ohayou)

Breakdown:

• おはよう (Ohayou) = Good morning (casual)
• ございます (gozaimasu) = polite ending to make the phrase more formal

Use おはようございます in most situations, especially with people you don’t know well or in formal settings.