{ bidder: 'ix', params: { siteId: '195464', size: [120, 600] }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776148', position: 'btf' }}, Could have Past unreal ability He could have taken the flight. In what way is "She has written 7 novels, and another one is due next year" wrong. ‘Been’ is the past participle of the verb ‘to be’, and so, as such, is used in perfect tenses. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_topslot_728x90' }}, Most past participles end -ed, -d, -t, -en, or -n. This page has lots of examples of past participles, shows how to form past participles, and has an interactive exercise. { bidder: 'openx', params: { unit: '539971080', delDomain: 'idm-d.openx.net' }}, The word in the example sentence does not match the entry word. { bidder: 'openx', params: { unit: '539971066', delDomain: 'idm-d.openx.net' }}, defaultGdprScope: true { bidder: 'appnexus', params: { placementId: '11654156' }}, { bidder: 'ix', params: { siteId: '195458', size: [300, 250] }}, The following is a list of commonly used irregular verbs: the base form (infinitive), past tense and { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, { bidder: 'ix', params: { siteId: '195459', size: [320, 50] }}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot_flex' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, I would use these two completely interchangeably. iasLog("__tcfapi useractioncomplete or tcloaded ", tcData, success); Past participles are classified as non-finite verbs. bidderSequence: "fixed" bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162050', zoneId: '776342', position: 'btf' }}, ; My teacher might have called my parents about my bad grades. timeout: 8000, { bidder: 'appnexus', params: { placementId: '11654208' }}, ga('require', 'displayfeatures'); dfpSlots['contentslot_4'] = googletag.defineSlot('/2863368/mpuslot', [[300, 250], [336, 280], 'fluid'], 'ad_contentslot_4').defineSizeMapping(mapping_contentslot).setTargeting('cdo_si', '4').setTargeting('sri', '0').setTargeting('vp', 'mid').setTargeting('hp', 'center').addService(googletag.pubads()); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, is used for completed actions. iasLog("criterion : cdo_l = en"); userIds: [{ { bidder: 'appnexus', params: { placementId: '11654198' }}, how can power line 'orientation' influence electronic equipment? { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, To describe an action that has started in the past and is still continuing, you would say it in present perfect continuous tense. }); { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, Embedded content, if any, are copyrights of their respective owners. { bidder: 'ix', params: { siteId: '195459', size: [300, 50] }}, of the word. { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, ; She may have stolen my lipstick. It can also be paired with an auxiliary verb like "was," "were," "has" and "had" to show that an action has been completed. ‘Been’ is the past participle of the verb ‘to be’, and so, as such, is used in perfect tenses. { bidder: 'sovrn', params: { tagid: '446383' }}, Can't you just make your examples with a Have P.P. ; She may have stolen my lipstick. }], } example with the added "but still..." will mean unfinished - a child can see what you're doing there. { bidder: 'ix', params: { siteId: '195457', size: [320, 100] }}, Simple Past Tense "sign-up": "https://dictionary.cambridge.org/auth/signup?rid=READER_ID", { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_mpuslot2' }}]}, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_mpuslot4_flex' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776142', position: 'btf' }}, {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 50], [320, 50], [320, 100]] } }, { bidder: 'openx', params: { unit: '539971081', delDomain: 'idm-d.openx.net' }}, name: "pubCommonId", Verbs have different forms, called tenses. I patterned these sentences from the very link that you provided, “Have been + verb-ing” vs. “have + past participle”, Present perfect for past action with present effect, “Question closed” notifications experiment results and graduation. Some commonly used irregular verbs: the base form (infinitive), past tense and past participle. {code: 'ad_contentslot_2', pubstack: { adUnitName: 'cdo_mpuslot', adUnitPath: '/2863368/mpuslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 100], [320, 50], [300, 50]] } }, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }},