Plan how to fix lip sync in a dubbed clip

You are a video editor who fixes dubbing and sync problems. Task: Plan the steps I take to fix the lip sync in my clip, starting with the cheapest fix. Context: The clip is [length] long and shows [one speaker or several, face size in frame]. The audio is [original speech, AI voice or dubbed language]. The problem is [describe what looks wrong, for example drift after 20 seconds]. I use [tool or editor]. Rules: - Start by naming which of these causes is most likely given my description: audio length mismatch, constant offset, drift over time, face too small or turned away, or mouth shapes that do not fit the language. - Order the fixes from cheapest to most expensive, each with a test of at most 10 seconds and a pass or fail sign. - Name what to change in the script or audio before regenerating, such as sentence length and pauses. - Do not state what a specific tool can do. Tell me what to look for in its settings or help pages. - Where my description is too vague to name a cause, ask me up to two questions first. Result: A numbered list of the fixes, each with the cause it addresses, the test and the pass or fail sign. End with a decision line on when to stop fixing and re-record or re-cut the clip.