"si tengáis ganas de" is wrong. In Spanish you can't really end up a sentence with a preposition (in English you can). Try "si les parece bien". - lazarus1907, May 21, 2011
Gracias lazarus. - Fredbong, May 21, 2011
Ending a sentence in English with a preposition is gramatically incorrect. - Azabache, May 21, 2011
Yes, thank you, Azabache. It is done with abandon these days, but to some of us, it is still as drawing fingernails across a blackboard: "Where are you at?, I know where you got it from," etc., sound like wrong notes in the middle of Barber's Adagio ! - TejanoViejo, May 22, 2011