1. Include subject.
2. Omit punctuation and caps.
3. To tell how long you have been doing something, follow this pattern:
: HACE + TIME + QUE + SENTENCE.
HACE + DOS SEMANAS + QUE + ESTOY MIEMBRO DEL CLUB DE AJADREZ
. It's been 2 weeks that I've been (I'm) a member of the chess club.
¿CUÁNTO TIEMPO HACE QUE + SENTENCE? ¿CUÁNTO TIEMPO HACE QUE + TÚ TOCAS EL TAMBOR?
How long (How much time) have you been playing the drum? PUBLISHER'S SITE: