a question on prepositions before a day

[Sweetpumpkin]

Hi,

1) I'd love to, but I'm doing something else on Saturday.

Is it okay to use "for" instead of "on" in 1)? If so, how does the meaning change?

2) I already have other plans for Saturday.

And we have 2): I think in 2), "for" is used because of "plans" (a plan for something, common phrase). How about using "on"? I think it's possible and it doesn't cause any diffrence in meaning. What do you think?

Thank you in advance,
sweetpumpkin

[Alan]

Hi,

I would agree with your analysis. The suggestion of 'on' refers to the particular day. 'For' indicates 'planned for' and I would suggest that it would have to more specific than 'something else'. You would really have to spell it out as in: We're not doing very much during the week but we have made special arrangements for Saturday as we are throwing a party then.

Alan
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