Breakdown of Можно это сделать сразу?
это
this / it is
сделать
to do (perfective) / to make (perfective)
можно
one may, it is allowed
сразу
immediately
Questions & Answers about Можно это сделать сразу?
Why do we use the perfective verb сделать here instead of the imperfective делать?
Because the focus is on the result—getting the thing completely finished. When using words like можно (is it possible / can one), we choose the perfective infinitive if we are talking about a single, completed action rather than the continuous process of doing it.
Is это the subject of this sentence?
Actually, no! Sentences with можно are impersonal, meaning they don't have a grammatical subject. это is the direct object of сделать (what is being done), so it is in the accusative case. It just looks exactly the same as its dictionary form.
Could I use a form of мочь (like могу) instead of можно?
You could, but it changes the meaning slightly. If you say я могу это сделать сразу?, you are specifically asking 'Can I do this right away?' Using можно keeps it general: 'Can this be done right away?' or 'Is it possible to do this right away?'
Why use сразу instead of сейчас?
While сейчас means 'now,' сразу specifically means 'immediately,' 'at once,' or 'right away.' The speaker is emphasizing that they want the action completed without any delay, which makes сразу the best choice here.