释义 |
underpinunderpin /ˈʌndɚˌpɪn/ ●○○ verb (underpinned, underpinning) [transitive] VERB TABLEunderpin |
Present | I, you, we, they | underpin | | he, she, it | underpins | Past | I, you, he, she, it, we, they | underpinned | Present perfect | I, you, we, they | have underpinned | | he, she, it | has underpinned | Past perfect | I, you, he, she, it, we, they | had underpinned | Future | I, you, he, she, it, we, they | will underpin | Future perfect | I, you, he, she, it, we, they | will have underpinned |
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Present | I | am underpinning | | he, she, it | is underpinning | | you, we, they | are underpinning | Past | I, he, she, it | was underpinning | | you, we, they | were underpinning | Present perfect | I, you, we, they | have been underpinning | | he, she, it | has been underpinning | Past perfect | I, you, he, she, it, we, they | had been underpinning | Future | I, you, he, she, it, we, they | will be underpinning | Future perfect | I, you, he, she, it, we, they | will have been underpinning |
1to give strength or support to something and help it succeed: These laws underpin our society.2to put a solid piece of metal under something such as a wall in order to make it stronger—underpinning noun [countable, uncountable]: the underpinnings of the nation’s economy |