The preposition "on" can be put on both places, but I'm not sure why some of the sentences below are ungrammatical, while others grammatical. How can I explain this? I need your help.
1.
(a) Until what time are you staying? (grammatical)
(b) What time are you staying until? (NOT grammatical)
"According to both sentences, they had the opportunity to cancel their trip. According to the second sentence, they did not cancel; according to the first sentence, they did."
Why are (b) and (c) ungrammatical while (a) is grammatical?
(a) What John preferred was for Mary to leave early.
(b) *What John believed was for Mary to leave early.
(c) *What John persuaded was for Mary to leave early.
but (e) and (f) is grammatically correct.
(e) What the colonists wanted was to be free from external taxation.
(f) What the colonists believed was that they should be freed from external taxation.
Any insight?
Thanks in advance.
Jay from ROK
Top answer
Hello Dcomest I'll do a couple, and maybe someone else will do the rest: 1. (a) Until what time are you staying? (grammatical)/(b) What time are you staying until?
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