| 单词 |
retroact |
| 释义 |
retroact
ret·ro·ac·tion R0198100 (rĕt′rō-ăk′shən)n.1. Application of a subsequent rule or condition to something that occurred at a previous time.2. An opposing or reciprocal action; a reaction.
ret′ro·act′ v.retroact (ˈrɛtrəʊˌækt) vb (intr) 1. to act in opposition2. to influence or have reference to past eventsret•ro•act (ˈrɛ troʊˌækt)
v.i. 1. to act in opposition; react. 2. to have reference to or influence on past occurrences. [1785–1795] retroact
Past participle: retroacted
Gerund: retroacting
| Imperative |
|---|
| retroact | | retroact |
| Present |
|---|
| I retroact | | you retroact | | he/she/it retroacts | | we retroact | | you retroact | | they retroact |
| Preterite |
|---|
| I retroacted | | you retroacted | | he/she/it retroacted | | we retroacted | | you retroacted | | they retroacted |
| Present Continuous |
|---|
| I am retroacting | | you are retroacting | | he/she/it is retroacting | | we are retroacting | | you are retroacting | | they are retroacting |
| Present Perfect |
|---|
| I have retroacted | | you have retroacted | | he/she/it has retroacted | | we have retroacted | | you have retroacted | | they have retroacted |
| Past Continuous |
|---|
| I was retroacting | | you were retroacting | | he/she/it was retroacting | | we were retroacting | | you were retroacting | | they were retroacting |
| Past Perfect |
|---|
| I had retroacted | | you had retroacted | | he/she/it had retroacted | | we had retroacted | | you had retroacted | | they had retroacted |
| Future |
|---|
| I will retroact | | you will retroact | | he/she/it will retroact | | we will retroact | | you will retroact | | they will retroact |
| Future Perfect |
|---|
| I will have retroacted | | you will have retroacted | | he/she/it will have retroacted | | we will have retroacted | | you will have retroacted | | they will have retroacted |
| Future Continuous |
|---|
| I will be retroacting | | you will be retroacting | | he/she/it will be retroacting | | we will be retroacting | | you will be retroacting | | they will be retroacting |
| Present Perfect Continuous |
|---|
| I have been retroacting | | you have been retroacting | | he/she/it has been retroacting | | we have been retroacting | | you have been retroacting | | they have been retroacting |
| Future Perfect Continuous |
|---|
| I will have been retroacting | | you will have been retroacting | | he/she/it will have been retroacting | | we will have been retroacting | | you will have been retroacting | | they will have been retroacting |
| Past Perfect Continuous |
|---|
| I had been retroacting | | you had been retroacting | | he/she/it had been retroacting | | we had been retroacting | | you had been retroacting | | they had been retroacting |
| Conditional |
|---|
| I would retroact | | you would retroact | | he/she/it would retroact | | we would retroact | | you would retroact | | they would retroact |
| Past Conditional |
|---|
| I would have retroacted | | you would have retroacted | | he/she/it would have retroacted | | we would have retroacted | | you would have retroacted | | they would have retroacted |
EncyclopediaSeeretroactionLegalSeeRetroactive |
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