http://www.englishforums.com/English/LinguisticsDiscussionForum/Forum35.htmGet into the nitty-gritty of the language.enXMOD (Build: 3616.28671)http://www.englishforums.com/English/MayHaveUsedTo/jkbnm/post.htm#801453Tue, 30 Jun 2009 14:03:15 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:801453Anonymous0http://www.englishforums.com/English/MayHaveUsedTo/jkbnm/post.htm#801453http://www.englishforums.com/English/comments35-801453.xmlBut if someone says: He used to live in Africa, so I think he knows what's what. Someone can answer: Well he may have done that, but it doesn't naturally folow that... Why can't one replace "done that" with "used to"?http://www.englishforums.com/English/MayHaveUsedTo/jkbnm/post.htm#801436Tue, 30 Jun 2009 13:35:11 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:801436Cool Breeze1http://www.englishforums.com/English/MayHaveUsedTo/jkbnm/post.htm#801436http://www.englishforums.com/English/comments35-801436.xmlIs "may have used to" a standard form? No, only the past tense is possible: He used to live in Africa. I didn't use to like him. (Some usage guides also accept: I didn't used to like him. ) CBhttp://www.englishforums.com/English/MayHaveUsedTo/jkbnm/post.htmTue, 30 Jun 2009 08:34:37 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:801341Anonymous2http://www.englishforums.com/English/MayHaveUsedTo/jkbnm/post.htmhttp://www.englishforums.com/English/comments35-801341.xmlHello Is "may have used to" a standard form? e.g. "Well, he may have used to live in Africa, but it doesn't naturally follow that he understands African ways."