Question

encontre o erro : do you want some pen ingles

Answer 1

The correct question is: "Do you want a pen?"

There is no "some" 'cause its "pen" and not "pens". In fact, the word "some" is used when the speaker cannot specify or does not need/want to specify a number or an exact amount in affirmative setences, in questions we use it to offer/request something to someone