Combining だけ and 位

Question

I'm aware that だけ can be used to say only. For example:

二年{にねん}だけ

which means "only two years". I'm also aware that 位{ぐらい} can be used to signify approximation. For example:

 二年位

which means "about two years".

So my question is can I combine both? Is 二年位だけ correct? Does it mean it's only been about two years?

Answer 1

Yes, you can safely say 2年ぐらいだけ ("only about two years"). Here ぐらい means "approximately".

2年ぐらいだけ日本語を勉強した。 I studied Japanese only for about two years.