I have been studying __________ three months.
I have been studying __________ three months.
Explanation
.
For = period of time
For example: I have been studying for three months میں تین ماہ سے مطالعہ کررہا ہوں
.
For = period of time
For example: I have been studying for three months میں تین ماہ سے مطالعہ کررہا ہوں