How to Memorize

but that's just not the case

Analysis

If you say 'that's not the case' what you really mean is that something is not true. This is a formal expression normally used in professional environments. "It is not the case that immigrants receive preferential treatment from the state." "John told me that Maria is arriving today but that is not the case, she will arrive tomorrow."

Social Examples (Basic)

1. I always thought that sushi would be horrible, but that's just not the case.
2. It's not the case that all politicians tell lies. It just seems that way.
3. I don't think it's the case that the world is warming up. I just don't believe in Global Warming.

Professional Examples (Basic)

1. Global research suggests that spending is falling, but looking at our sales figures you can see that is not the case.
2. It is not the case that the most highly educated workforce yield the best results. The right training and support have a huge part to play.

Further Suggestions