○歳のお誕生日おめでとうって英語でなんて言うの？

The usual greeting would be 'Happy Birthday!' for any age group. 'Many happy returns of the day!' is a little more formal. If it's a child or lover or close friend you could use a term of endearment such as 'my love' or 'babe': 'Happy Birthday sweetie!'

You say twentieth birthday. This is how you pronounce it if you want to include the age in your birthday wishes.

Happy 20th birthday / your turning 20 congratulations. Wow your turning 5, happy birthday. Happy 21st birthday, enjoy the party!

Hello Yamachan :-) I hope this helps! To answer your question you may use "1st , 2nd and 3rd"

Happy Birthday, you are __ years old today! Is telling them how old they are, most likely to a child. How old are you today? This is a way of asking how old they are on their birthday!

When you want to wish someone a happy birthday and want to refer to their age, you use ordinal numbers (first 1st, second 2nd, third 3rd, etc.) in between the "Happy Birthday!" That is the best way.

It is customary to mention the number of years in terms of birthdays achieved... If we do not know the actual number (if we feel it may be " indelicate to mention") then we can leave it out;-) "Happy 50th bithday old friend...I wish I was there to party with you!"

This is the most common and natural way to wish someone a happy birthday. Happy fifth (5th) birthday, Mana chan! Happy tenth (10th) birthday to you, Yasu san! Happy third (3rd) birthday!

We do not say happy 20 birthday in english. To give the number a place in a chronological order of things we say first, second, third, fourth, fifth, sixth, seventh, eighth, nineth and tenth. So happy fifth birthday.

Many happy returns on your 18th birthday' is a fairly formal way to say happy birthday to someone with a specific special age. It might be something an older person might say to a younger person. 'I can't believe you're already 10 years old!' Is a lovely way to wish happy birthday to a child who is growing up too quickly for you! You might write this on the inside of their card. 'Happy 20th birthday' is the standard way to wish someone a specific birthday. You would usually write this in their card, or you can also say it in conversation.

"Happy 10th Birthday" you would be saying Happy Tenth Birthday. "Happy 5th Birthday" you would pronounce this like Happy Fifth Birthday, you could also add the name of the person whose birthday it is. "Happy 2nd Birthday" This would be pronounced like Happy second birthday then the name of the person if you wish to use the name.

Above I have provided two phrases that let someone know that you are wishing them a happy (however old they are) birthday.

saying best wishes means that you want everything good for them on their birthday

"Happy ____(st/nd/rd/th) birthday!", can be used to wish someone a happy birthday. When you want to include the person's age, such as 22, you will want to follow 4 rules. First, if the age of the person ends in the number 1, you will say that number ending with, "st". For example, "Happy 21st birthday!". If the age ends in the number 2, use "nd". If the age ends in the number 3, use "nd". Finally, if the age ends in any other number, use "th". "Enjoy your ______ (st/nd/rd/th) birthday!", wishes someone a happy birthday while expressing that you hope he/she enjoys his/her day. An example of this is, "Enjoy your 30th birthday!". "I hope you have a wonderful ____ (st/nd/rd/th) birthday!", can also be used to wish someone a happy birthday while including his/her age. By using an adjective such as "wonderful", you are specifically expressing what you hope the person's day is like. If you'd like, you can also remove the exclamation point to make it more formal.

Fifth: 05th (turning 5 five) Tenth: 10th (turning 10 ten) Twentieth: 20th (turning 20 twenty) We can use the sentences above to wish someone a happy birthday specific to the age they are turning. "Happy twentieth birthday John, I wish you an amazing day forward!"

"Happy 5th birthday!" and "Happy 21st birthday!" These are expressions used when someone is celebrating their birthday, you will often use "Happy (followed by their age) Birthday" depending on their age will depend on the 'st' 'nd' 'rd' or 'th' ex. 1st 2nd 3rd 4th 5th 6th etc.