"I bought two of this pen." means the person bought two pens of the same kind.
"I bought two of these pens." means the person bought two pens from a larger group of pens.
Am I right?
" It sounds strange to me, since "this" refers to a singular. " implies that the pens were of identical shape, size color, and manufacture. For two + one item, you need a clarification like this: I bought two copies of this picture / book / video.
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anonymous"I bought two of this pen."
It sounds strange to me, since "this" refers to a singular. "I bought two of these pens." implies that the pens were of identical shape, size color, and manufacture.
For two + one item, you need a clarification like this:
I bought two copies of this picture / book / video.