Disagree over a plan in Cantonese

大佬咁唔得喎 communicates that the situation will not do. It does not identify the problem by itself. If the listener cannot tell whether you object to the time, place, cost or whole idea, they have little basis for changing the plan.

State your own preference or constraint before making a judgement about the other person. “Eight is too late for me” is more specific than saying that their plan is bad. You can then ask about an earlier time. This keeps the exchange focused on a detail both people can confirm or change.

A useful counterproposal changes the detail that caused the disagreement. If the time is too late, suggest an earlier time. A different restaurant at the same late hour does not address that problem. You can save other preferences for after the first difficulty is clear.

得唔得 asks whether the proposed option works in this context. The question requires an answer; it is not a way to announce that your choice has already won. If the listener says it does not work, ask what part is difficult rather than simply repeating your proposal more forcefully.

The written dialogue below ends with the new time repeated. Repetition here checks shared understanding rather than expressing impatience. Both people have answered the relevant question, so the exchange reaches an agreement instead of ending on an unaccepted suggestion.

If your preferences cannot be reconciled, you can leave the plan undecided or choose not to join. A compromise is not something a sentence can guarantee. The language task is to make each person’s position clear and distinguish an agreed outcome from an unresolved one.

又唔係比賽 says it is not a competition. It may comment on how the exchange is going, but it does not settle the meeting time. Similarly, a line about not fighting over every little thing changes the frame without automatically explaining which option you prefer.

Use a practical check after any reaction: can the other person now tell what you want to do? If not, return to the specific proposal. In practice, swap roles and give your partner a real constraint. That forces you to listen and adapt rather than recite a dialogue whose agreement was guaranteed in advance.