subjunctive conjugation

Question

the question was"Es posible que ellas                un nuevo estillo.the HINT: conjugate 'crear' in el presente subjuntivo.I wrote 'crean'  but was marked incorrect - it should be 'creen' I am sure that I am indeed wrong - but I don't understand why?!

Accepted Answer

Hola Valerie
This is a very common mistake because of the similarity between the verbs creer (to believe) and crear (to create); you can see there is only one letter that is different. 
When conjugating these verbs in the present subjunctive we have different endings because one is an -ar verb and the other an -er verb, so:

CREER
Yo cre-a
Tú cre-as
Él cre-a
Nosotros cre-amos
Vosotros cre-áis
Ellos cre-an

CREAR
Yo cre-e
Tú cre-es
Él cre-e
Nosotros cre-emos
Vosotros cre-éis
Ellos cre-en

Plus, if you look at their conjugation in the present subjuntive, they coincide with the "other verb" conjugation in the present indicative!!  (apart from the yo form)
It is a bit confusing and it takes some time to get used to these two verbs, but as I said, you are not alone.
Saludos
Inma

Answer

In the present subjunctive, the -ar verbs are conjugated with -e endings (and er and ir verbs are conjugated with -a endings)
So, ellas crean in present indicative tense, but ellas creen in present subjunctive.