以下是一些常见的不及物动词分类及示例：
一、表示动作或状态的不及物动词
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run（跑）：He runs every morning.
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swim（游泳）：She swims in the lake.
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sleep（睡觉）：We sleep at night.
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laugh（笑）：They laughed loudly.
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cry（哭）：The baby cried for milk.
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smile（微笑）：She smiled at me.
二、表示发生、出现的不及物动词
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happen（发生）：What happened yesterday?
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occur（发生，出现）：An idea occurred to him.
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take place（发生）：The meeting took place in the hall.
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appear（出现，显得）：A rainbow appeared in the sky.
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disappear（消失）：The bird disappeared into the forest.
三、表示存在、保持的不及物动词
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exist（存在）：Does life exist on Mars?
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remain（保持，残留）：Little remains of the old building.
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stay（停留，保持）：Please stay here.
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lie（躺，位于）：He lies on the sofa. / The town lies by the river.
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stand（站立，位于）：She stands at the door. / The tower stands on the hill.
四、表示变化的不及物动词
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grow（生长，变得）：Plants grow in spring. / He grew angry.
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change（变化）：The weather changes often.
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improve（改善）：His health improves day by day.
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increase（增加）：The population increases rapidly.
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decrease（减少）：The number decreases slowly.