[Grammar] The expression is not much used

sb70012 said:

Hello my friends,

Suppose that we are talking about an expression (short sentence) which is not much used in English:

1. The expression is less used in the US/UK.
2. The expression is a little used in the US/UK.
3. The expression is lowly used in the US/UK.

Note: (I don't want to use the word "rarely". I know it's better to use "rarely" but I want to know whether I can say it with an other way as well or not)

Thank you

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sb70012 said:

Hello my friends,

Suppose that we are talking about an expression (short sentence) which is not much used in English:

1. The expression is less used in the US/UK.
2. The expression is a little used in the US/UK.
3. The expression is lowly used in the US/UK.

Note: (I don't want to use the word "rarely". I know it's better to use "rarely" but I want to know whether I can say it with an other way as well or not)

Thank you

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sb70012 said:

1. 'The expression is less often used in the US/UK'
2. 'The expression is used in the US/UK less often' [...]

I know that No. 1 is correct

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5jj said:

It isn't, unless you are making a comparison.

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Rover_KE said:

#2 needs to be followed by something like '...than it is in Australia and New Zealand.'

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sb70012 said:

Good point. Now I completely understood it. Thank you.
This is my final question:
1. The expression is rarely used in the US/UK.
2. The expression is seldom used in the US/UK.

In number 1 and 2, can I put the adverbs at the end of the sentences too?
I mean:
1. The expression is used in the US/UK rarely. :?:
2. The expression is used in the US/UK seldom. :?:

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