Coniugazione del verbo inglese TO HAPPEN

Verbo regolare: happen - happened - happened

Indicativo

Presente

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doesn't it happen?
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Presente continuo

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isn't it happening?
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Preterito

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didn't it happen?
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Preterite continua

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wasn't it happening?
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Presente perfetto

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hasn't it happened?
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Presente perfetto continuo

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hasn't it been happening?
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Piuccheperfetto

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hadn't it happened?
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Piuccheperfetto continuo

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hadn't it been happening?
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Futuro semplice

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won't it happen?
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Futuro continuo

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won't it be happening?
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Futuro anteriore

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won't it have happened?
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Futuro anteriore contínuo

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won't it have been happening?
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Presente

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wouldn't it happen?
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Presente continuo

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wouldn't it be happening?
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Passato

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wouldn't it have happened?
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Passato continuo

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wouldn't it have been happening?
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to happen

Presente

happening

Passato

happened