In Irish, there are different endings for verbs depending on who or what is the subject - who is doing the action in the sentence. But what has this got to do with conjugation? Well, in Irish ...
When the verb is in a non-finite form, such as an infinitive (to do) or a participle (doing), its subject is implied to be the subject of the clause, or sometimes the closest noun phrase.
Using est-ce que at the start of a phrase or changing the order of the subject and verb are options. The negative form Do you you know how to use the negative form? In French ne ... pas means 'not ...