你还没吃晚饭吧 You eaten dinner ; You also don't eat dinner

你没有吃晚饭 You did not eat dinner

你没有吃晚饭的权利 You did not eat dinner

没赶上吃晚饭 miss one's dinner

没赶上吃晚饭. miss one's dinner

你没吃晚饭 You did not eat dinner

我还没吃晚饭 I did not eat dinner

我还没吃晚饭呢 Ich war noch nicht gegessen