I've had French lessons back in the old days at school and now I'm re-learning it, cause I forgot most of it, which is a shame
When you want to deny something you use: ne.....pas
So I'm a little confused with lilly's song: J'ai pas vingt ans which should be something like Je n'ai pas vingt ans. I notice people writing more sentences without using "ne". I can't find any explanation on the net, so hopefully someone can explain, thanks