Bitesize Spanish 1

I will probably do a few of these little bitesize articles or tables as it will help me to get it stuck in my head...this first one is a Spanish one taken from the book Portales Unit 1 from the Open University and is a little table showing how endings change for professions or occupations depending on whether they refer to a male or a female:

Ending	Masculine	Feminine
Ending in -o change to -a	el arquitecto	la arquitecta
Ending in -or, -ín add an -a	el professor, el bailarín	la profesora, la bailarina
Ending in  -nte, -ista No change	el artista el cantante	la artista la cantante