Question

Choose the sentence that is NOT grammatically correct.
A) Es la cuarta ves que veo esa pelicula.
B) Es la primera ves que veo esa pelicula.
C) Es la primer ves que veo esa pelicula.
D) Es la segunda ves que veo esa pelicula.

Answer 1

C.
primer is singular masculine and (la) is singular feminine. so, you can't say "la primer" instead it's  "la primera. they both have to be either singular feminine or singular masculine.

And, A is correct..for the person who said it was incorrect..it's just saying "It's the fourth time I see that movie. 

And btw..it's "VEZ" not "VES"

~Buenas