Whenever I see 다가 I always see it used in typical examples like: 책을 읽다가 잠이 들었다 etc. These examples get really boring and redundant after a while. I know there are more ways of using 다가 than these typical model sentences which usually state some kind of an action with some immediate subsequent action that happened afterwards IN THE PAST. However, I always hear 다가 and even 했다가 used in more complex patterns all the time - especially in the future tense. This brings me to the meat of what I'm trying to get at here. How can you use 다가 in the future tense - like____하다가 ____을거야 etc etc. Are there any other contexts/tenses with which it can be used? Can you give me examples/and rules in how I can use 다가 in the future and in the command form? Also, I remember talking to my 실장님 in a program that I go to about how I wanted to take a rest for a month and save money before re-applying for another session ... and she said 한달 동안 쉬었다가 (then you can come back and re-apply) ... So, this is another case of being able to use 었다가 in the future. What's the difference between saying that and 한달동안 쉬고 (and then reapply again)?