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Used to indicate that something is not certain or guaranteed; may or may not happen.
天气预报说可能下雨，但不一定会下。
The weather forecast says it might rain, but it may not.
这个计划不一定会成功。
This plan may not succeed.
Often used to express uncertainty or to soften a statement.
Use this phrase when you want to express doubt or uncertainty about a future event or outcome.
This phrase is often followed by a verb in the potential aspect (e.g., 会来, 会下雨) to indicate possibility.
Combination of 不一定 (not certain) and 会 (can/may), forming a phrase to express uncertainty.
This phrase is commonly used in both formal and informal contexts to indicate that an outcome is not guaranteed.