and jechac ?
jechać is infinitive form of driving. Let me make the declension of the word:
ja
jadęty
jedzieszon,ona,ono
jedziemy
jedziemywy
jedziecieoni
jadąalso czym?
For example:
Czym jedziesz? It can be translated like: What are you using to drive with?
czym? = (more less) - with what?
ci ludzie = those people
I'm not fluent in English so there may be some mistakes in my translations, sorry..