Menos mal- thankfully
Tener + que - to have to
Lo pasar bien - to have a good time
Sacar fotos - to take photos
Bueno, eso es todo - well thats all for now
No te olvides de escribir me - dont forget to write to me
Espero + infinitive - I hope to
Pienso + infinitive - i intend to
Creo que fue - i thought it was
Creo que es - i think it is
Podría(s) - i (you) could
ir al aeropuerto a buscarte - collect you at the airport
ver los sitos - see the sites
probar la comida irlandesa/espanola - try irish/spanish food
ahorrar dinero - save money
mejorar tu inglés/mi espanol- improve your English/my Spanish
ensenar(te/me) la ciudad/pueblo - show you around the city/town
Si vienes podríamos - if you come we could
hacer surf - go surfing
visitar el mueso - visit the museum
alquilar un DVD - rent a DVD
jugar al tenis/fútbol/etc - play tennis/football/etc
ir - to go (try not to over use the verb ir this is very common and makes the letter boring)
al teatro - to the theatre
de compras - go shopping
a un concierto - go to a concert
Dile a tus padres hola de mi parte - Tell your parents hello on my part
Lo pasé bomba - I had a great time
Espero que todo esté bien - I hope all is good
Muchas gracias por escribime - Thank you very much for writing
Me encanta leer tus cartas porqué aprendo mucho - I love to read your cards because I learn a lot
Escribime pronto - Write to me soon
Besos y abrazos - Kisses and hugs (Its a common way of saying goodbye at the end of a letter in Spain, I learnt from an exchange)
El veintiuno de mayo - The 21st of May (my teacher said its a good impression to use the date of the exam)
Es escencial - Its essential
Tengo que terminar ahora - I have to finish now
Pero, antes ledigo mis noticias - But, before I tell you my news
Es imprescindible - Its vital
I hope this helps, buenas suerte :)