how do i say "in 1/2/3/... days" in japanese? for example: "my birthday is in 2 days"
you can say "in _ days" with the counter for days and the suffix 後(go) of after,later.
誕生日は5日後です / tanjôbi ha itsuka go desu. / (my) birthday is in five days
you can use the days as subject too:
6日後は私の誕生日です / muika go ha watashi no tanjôbi desu / my birthday is in 6 days.
for 1 or 2 days you can use "tomorrow" or "after tomorrow"
明日は/明後日は誕生日です : tomorrow/the day after tomorrow is (my) birthday.
誕生日は5日後です / tanjôbi ha itsuka go desu. / (my) birthday is in five days
you can use the days as subject too:
6日後は私の誕生日です / muika go ha watashi no tanjôbi desu / my birthday is in 6 days.
for 1 or 2 days you can use "tomorrow" or "after tomorrow"
明日は/明後日は誕生日です : tomorrow/the day after tomorrow is (my) birthday.