This is all the Czech I know. The accent marks are not in the words.
Hello..................dobry den' Goodbye............na sledanou Please...............prosim Thank You.........dDkuji vam Do you speak English?..........Mluvite anglicky? I don't understand.................Nerzumim How much?....................Kolik? Yes....................ano No.....................ne Sorry.....................promiDte Where is the bathroom?..............Kde je toaleta? Where can I find a restaurant?.......Kde najdu restauraci?