You really don’t need to. Corpo speak is really just for speaking across different lines of business, like an engineer talking to a project manager or a sales exec talking to a customer. As long as you can express your concerns respectfully then it’s not necessary.

So instead of saying something like “what you’re asking for makes no sense, that’s not my job” you’d say something like “I want to make sure we’re both understanding the requirements. Send me what you’re proposing and I’ll get you pointed in the right direction.”