Reminder:
In French, you can make a sentence a question just by changing the intonation and raising your voice at the end of the sentence.
Ex: Tu aimes le chocolat. / Tu aimes le chocolat? = You like chocolate or Do you like chocolate? It can be both a statement or a question according to the intonation.
To make it more explicit, you could add: Est-ce que, in front of the sentence:
Ex: Est-ce que tu aimes le chocolat? Do you like chocolate?
Or you can also invert the verb and subject and add an - between the verb and the subject:
Ex: Aimes-tu le chocolat? Do you like chocolate?
Test yourself below with a quick starter question.