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# '''一般过去时的反事实'''：如果现在正在下雨，那么Sally就会在里面（If it was raining right now, then Sally would be inside）。<ref>{{cite journal |last1=von Prince |first1=Kilu |date=2019 |title=Counterfactuality and past |url=https://link.springer.com/content/pdf/10.1007/s10988-019-09259-6.pdf |journal=Linguistics and Philosophy |volume=42 |issue=6|pages=577–615 |doi=10.1007/s10988-019-09259-6 |s2cid=181778834 |doi-access=free }}</ref><ref>{{cite thesis |last=Karawani |first=Hadil |date=2014 |title=The Real, the Fake, and the Fake Fake in Counterfactual Conditionals, Crosslinguistically |page=186 |publisher=Universiteit van Amsterdam |url=https://pure.uva.nl/ws/files/1695453/142017_thesis.pdf}}</ref><ref name="Linguistic Society of America">{{cite conference |url=https://journals.linguisticsociety.org/proceedings/index.php/SALT/article/view/27.547 |title=Fake Perfect in X-Marked Conditionals |last1=Schulz |first1=Katrin |date=2017 |publisher=Linguistic Society of America |book-title=Proceedings from Semantics and Linguistic Theory. |pages=547–570 |conference= Semantics and Linguistic Theory.|doi=10.3765/salt.v27i0.4149|doi-access=free }}</ref><ref>{{cite book |last1=Huddleston |first1=Rodney | last2=Pullum |first2=Geoff |date=2002 |title= The Cambridge Grammar of the English Language |publisher=Cambridge University Press |isbn=978-0521431460|pages=85–86}}</ref>

# '''一般过去时的反事实'''：如果现在正在下雨，那么Sally应该在里面（If it was raining right now, then Sally would be inside）。<ref>{{cite journal |last1=von Prince |first1=Kilu |date=2019 |title=Counterfactuality and past |url=https://link.springer.com/content/pdf/10.1007/s10988-019-09259-6.pdf |journal=Linguistics and Philosophy |volume=42 |issue=6|pages=577–615 |doi=10.1007/s10988-019-09259-6 |s2cid=181778834 |doi-access=free }}</ref><ref>{{cite thesis |last=Karawani |first=Hadil |date=2014 |title=The Real, the Fake, and the Fake Fake in Counterfactual Conditionals, Crosslinguistically |page=186 |publisher=Universiteit van Amsterdam |url=https://pure.uva.nl/ws/files/1695453/142017_thesis.pdf}}</ref><ref name="Linguistic Society of America">{{cite conference |url=https://journals.linguisticsociety.org/proceedings/index.php/SALT/article/view/27.547 |title=Fake Perfect in X-Marked Conditionals |last1=Schulz |first1=Katrin |date=2017 |publisher=Linguistic Society of America |book-title=Proceedings from Semantics and Linguistic Theory. |pages=547–570 |conference= Semantics and Linguistic Theory.|doi=10.3765/salt.v27i0.4149|doi-access=free }}</ref><ref>{{cite book |last1=Huddleston |first1=Rodney | last2=Pullum |first2=Geoff |date=2002 |title= The Cambridge Grammar of the English Language |publisher=Cambridge University Press |isbn=978-0521431460|pages=85–86}}</ref>

# '''Past Perfect Counterfactual''': If it ''had been raining'' yesterday, then Sally ''would have been'' inside.

# '''Past Perfect Counterfactual''': If it ''had been raining'' yesterday, then Sally ''would have been'' inside.

# '''过去完成时的反事实'''：如果昨天下了雨，那么Sally就会在里面(If it ''had been raining'' yesterday, then Sally ''would have been'' inside)。

# '''过去完成时的反事实'''：如果昨天下了雨，那么Sally当时应该会在里面(If it ''had been raining'' yesterday, then Sally ''would have been'' inside)。

Another kind of conditional uses the form "were", generally referred to as the irrealis or subjunctive form.<ref>There is no standard system of terminology for these grammatical forms in English. Pullum and Huddleston (2002, pp. 85-86) adopt the term "irrealis" for this morphological form, reserving the term "subjunctive" for the English clause type whose distribution more closely parallels that of morphological subjunctives in languages that have such a form.</ref>

Another kind of conditional uses the form "were", generally referred to as the irrealis or subjunctive form.<ref>There is no standard system of terminology for these grammatical forms in English. Pullum and Huddleston (2002, pp. 85-86) adopt the term "irrealis" for this morphological form, reserving the term "subjunctive" for the English clause type whose distribution more closely parallels that of morphological subjunctives in languages that have such a form.</ref>