French language Q&A Forum

I have read earlier that while doing negation in avoir we should  change the articles into de for example.. J'ai un Stylo 

Je n'ai pas de Stylo. Then how to follow this rule while using verbs 

Since one can use à or en with vélo, does that mean one can also use both with bicyclette?

Hi.' Mademoiselle Rose, vous êtes devenue une charmante jeune fille' translates as: M. Rose, you became a charming young lady.  Wouldn't the perfect tense: you have become ' be better here if this is a direct comment to Miss Rose? 

Pekka Järvilehto. 

Helsinki

Hi, why is aucun in Il n'aime aucun programme de télé-réalité masculine? Is there something special with programme?

"Elle va au marche" i always thought that if there is a vowel right after like va and au that we abbreviate?