with all due respect

US /wɪθ ɔl du rɪˈspekt/
UK /wɪθ ɔl du rɪˈspekt/
"with all due respect" picture
1.

used as a polite formula preceding a statement of disagreement or criticism

:
With all due respect, I think your plan has some flaws.
With all due respect, that's not entirely accurate.