Today,  you are going to learn one of useful verb ending in Korean. In the video below has good examples you can practice and study. I just want to add more explanation that 지 is expression of talk down, so you can use it only to your friend or young children. However, 죠 is abbreviation of 지요 (요 form is casual honorific), so it is good to use in any time with any people. I strongly recommend you to use 죠 instead of 지 when you talk with stranger or old people. 지/죠 is requesting a confirmation. For instance…

The answer is #2, right? 답이 2 번 이죠, 맞죠?

To be right 맞다 – 맞지요 – 맞죠?

To be delicious 맛있다 – 맛있지요- 맛있죠?

To (go) went – 갔다 – 갔지요 – 갔죠?

To (eat) ate – 먹었다 – 먹었지요 – 먹었죠?

As I said that is requesting a confirmation, so it should be past tense when you use action verbs. Make you own sentences and send me your questions.