0I am looking for some rules or reasons behind the following:02br 02br 00I'm not sure01i00__________02i02br 02br 00a) where they live - Correct02br 02br 00b) where 01font00do02font00 the live - X02br 02br 00She doesn't know01i00____02i02br 02br 00a) when the store opens - Correct02br 02br 00b) when 01font00does 02font00the store open - X02br 02br 00I would like to know what grammar rule makes a correct and not b. 02br 02br 00Thanks,02br 02br 00Bernie0-
Top answer
02br 00 I don't know when the store opens. )02br 00 The store does open ... *)02br 00 When does the store open?
— CalifJim
02br 00 I don't know when the store opens.
)02br 00 The store does open ...
*)02br 00 When does the store open?
02br 00 I have no idea where they live.
)02br 00 They do live ...
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0 Subject-auxiliary verb inversion is used only in direct questions, not in indirect (embedded) questions.02br 02br 00 The store opens ...02br 00 I don't know when the store opens. (No inversion, because it's indirect.)02br 00 The store does open ... (Expand 01i00opens02i00 into 01i00does open02i00 in
0 01i00who they are, what they do, when they go, where they go, whether they know02i00, and similar clauses in sentences like02br 02br 00 I don't know who they are. I don't know what they do. ...02br 00 Can you tell me who they are? Can you tell me what they do? Can you tell me when they go? ...02br 00 He has not considere