"A man reads."
Translation:Een man leest.
Like in English, there are a number of ways to conjugate verbs in Dutch, depend on whether they are "weak" or "strong" verbs, and also whether they are regular or irregular verbs.
When I first began to learn Dutch, I often used this site (http://www.verbix.com/languages/dutch.shtml) and Wiktionary. If you enter the infinitive form of a verb (so, lezen, eten, zijn etc) Verbix and Wiktionary both have charts for their conjugation.