The worst thing you can do in a business presentation, is make one of these blunders. I mean, English can be a tricky language even for those who grew up speaking it. But if you ever want to make it to the Assistant to the Regional Manager, you need to avoid these incorrect phrases at the office.
For example: Intensive means focused, so by saying the first one, you’re talking about a singular purpose. But when you use it in the context you’re using it in, it makes no sense.
You want all angles and options considered, not just one.