No[0][1][2][3][4][5][6][7][8]. [0]: http://dictionary.cambridge.org/us/grammar/british-grammar/modals-and-modality/could-may-and-might http://dictionary.cambri

No[0][1][2][3][4][5][6][7][8]. [0]: http://dictionary.cambridge.org/us/grammar/british-grammar/modals-and-modality/could-may-and-might http://dictionary.cambridge.org/us/grammar/british-grammar/m... [1]: http://www.learnersdictionary.com/qa/modal-verbs-may-might-can-could-and-ought http://www.learnersdictionary.com/qa/modal-verbs-may-might-c... [2]: https://english.stackexchange.com/questions/64374/might-have-vs-could-have https://english.stackexchange.com/questions/64374/might-have... [3]: https://english.stackexchange.com/questions/99957/what-is-the-difference-between-can-could-may-and-might https://english.stackexchange.com/questions/99957/what-is-th... [4]: https://english.stackexchange.com/questions/4661/it-could-might-may-be-funny-what-is-the-correct-usage https://english.stackexchange.com/questions/4661/it-could-mi... [5]: https://www.myenglishteacher.eu/question/would-could-should-might/ https://www.myenglishteacher.eu/question/would-could-should-... [6]: https://forum.wordreference.com/threads/could-vs-might.2520657/ https://forum.wordreference.com/threads/could-vs-might.25206... [7]: http://www.talkenglish.com/grammar/auxiliary-verbs-can-could-may-might-must.aspx http://www.talkenglish.com/grammar/auxiliary-verbs-can-could... [8]: https://www.englishforums.com/English/CouldVsMight/blmxzx/post.htm https://www.englishforums.com/English/CouldVsMight/blmxzx/po... EDIT: Quote from [2]: > Could and might are often, but not always, interchangeable. He might have come / studied = 'We don’t know whether has come / studied or not', but you could substitute could. If you want to indicate ability or permission, however, you need He could have come / studied = ‘He had the ability to come / study.' > It's possible that he came from a different culture would be used in considering a historical figure who didn’t seem to fit into his environment. If you were talking about a current situation, you’d say It's possible that he comes from a different culture. It’s hard to think of any circumstances in which It's possible that he come from a different culture would be used, even if you regard ‘come’ as subjunctive. > English modal verbs are both important and subtle. You're unlikely to gain a full understanding of their use in exchanges such as this and if, as I assume, Noah, you are a non-native speaker of English you really need the help of a qualified English teacher.