请告诉我have to是不是情态动词

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请告诉我have to是不是情态动词

请告诉我have to是不是情态动词
请告诉我have to是不是情态动词

请告诉我have to是不是情态动词
是属于情态动词,但主语是第三人称单数时要用has to
变疑问句或否定句时时要加助动词.如
He has to finish it by himself .
Does he have to finish it by himself
He doesn't have to finish it by himself .
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不是
它和must意思几乎一样
但must是情态动词
have to不是
must强调主观
而have to强调客观
情态动词有can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would)