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noun | verb quarantinequarantine1 /ˈkwɔrənˌtin, ˈkwɑr-/ noun [uncountable] ETYMOLOGYquarantine1Origin: 1600-1700 Italian quarantina period of forty days, from Old French, from quarante forty ► in quarantine The monkeys were kept in quarantine for 31 days. ► under quarantine Doctors have placed the town under quarantine. a period of time when a person or animal is kept apart from others in case he, she, or it has a disease: The monkeys were kept in quarantine for 31 days. Doctors have placed the town under quarantine. [Origin: 1600–1700 Italian quarantina period of forty days, from Old French, from quarante forty] noun | verb quarantinequarantine2 verb [transitive often passive] VERB TABLEquarantine |
| Present | I, you, we, they | quarantine | | he, she, it | quarantines | | Past | I, you, he, she, it, we, they | quarantined | | Present perfect | I, you, we, they | have quarantined | | he, she, it | has quarantined | | Past perfect | I, you, he, she, it, we, they | had quarantined | | Future | I, you, he, she, it, we, they | will quarantine | | Future perfect | I, you, he, she, it, we, they | will have quarantined |
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| Present | I | am quarantining | | he, she, it | is quarantining | | you, we, they | are quarantining | | Past | I, he, she, it | was quarantining | | you, we, they | were quarantining | | Present perfect | I, you, we, they | have been quarantining | | he, she, it | has been quarantining | | Past perfect | I, you, he, she, it, we, they | had been quarantining | | Future | I, you, he, she, it, we, they | will be quarantining | | Future perfect | I, you, he, she, it, we, they | will have been quarantining |
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