[paochai01]

please, teachers, could you give me a light on this?

often versus frequently
a) This is a frequent mistake, no one knows how to do it right.
b) She comes here often, she likes talking to us.
c) She comes here frequently, she likes talking to me.
Do they share the same meaning?

applicable versus usable
a) Whether one can use these results to get something done, then these results are usable.
b) I need to get this machine working, it has to be useful, I need to apply this new method to do that, the method has to be applicable, easy to apply.
Do they share the same meaning?


"cold feet" slang/idiom
1) teachers, is this slang well-knowed in every English-speaking country?
2) Could one say... I got cold foot instead of cold feet with the same meaning?
I was about to do that, but I got cold feet.
3) How do you call a driver who drives fastly? Is it 'heavy feet'?

Thanks a thousand

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often - happens regularly or many times
frequently - very often or many times

If something is APPLICABLE to a particular person, group, or situation, it AFFECTS them or it IS RELATED to them. While something USABLE is something that can be used.

As for the slang, every particular/specific place has their own. Some slang terms in California may not be understood by some people from Texas and vice versa.

'Cold feet' is cold feet. You can't say 'cold foot'.. well, not if you're joking around. haha!