Both could be correct.
One is a question - How long have you been playing tennis?
One is a statement - You have been playing tennis.
"How long have you been playing tennis?" is the correct phrase to ask about the duration of someone's tennis experience.
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."
The sentence "How long you wait here" is not grammatically correct. A more accurate phrasing could be "How long will you wait here?" or "How long have you been waiting here?" to convey the intended meaning.
Yes, the sentence "It has been long said that music is universal" is correct. It conveys the idea that many people have acknowledged or claimed that music transcends cultural boundaries and is understood and appreciated by people worldwide.
The correct pronunciation of "Guerlain" is "gair-lahn."
"It's" should be used to replace the words "it is" or "it has." For example, It's been a long time. (It has been a long time.) It's up to you. (It is up to you.) "It's" should never be used as a possessive. The correct possessive form of "it" is "its" (without an apostrophe). For example, "Every dog has its day."
Serena Williams began playing tennis at the age of four. This means she has been playing tennis for 29 years. However, she has been playing professionally for 19 years.
he started playing tennis at the age of 5
19 years exactly
Will start play tennis tomorrow morning after such a long breaking
she trains 3 hours a day and never stops
Tennis has been around for 7000 years.
The inside line is the boundary for tennis when playing singles. The outside line is the boundary in Doubles.
How long have you been in USA or How long you have been in USA.?
Since he was 15 or 16 years oldSince he was very young and became a profesionals when he was about 15-16years old
dontt ask stupid things
No, the sentence is not grammatically correct. It should be: "It had been a long time since I had written to you."
samba has been playing since the 1920s