Перевести на английский:у тебя есть сестра?нет,но у меня есть брат.у тебя есть красная книга?да.у тебя есть сумка?да,у меня есть 2 сумки.у тебя есть птица?да у меня есть одна желтая птица и две зеленые птицы.

Here is the translation of your dialogue into English:

• Do you have a sister? No, but I have a brother.
• Do you have a red book? Yes, I do.
• Do you have a bag? Yes, I have two bags.
• Do you have a bird? Yes, I have one yellow bird and two green birds.

Grammar Notes:

• Possession: In English, you can use either "Do you have...?" or the more British "Have you got...?" Both are correct, though "Do you have" is more common in American English.
• Plurals: When talking about more than one item (bags, birds), the noun must be pluralized by adding -s.
• Colors and Numbers: In English, the number comes first, then the color, then the object (e.g., "two green birds").

Would you like the translation in a more formal or informal style?