Examples of using "まだ決めていません。" in a sentence and their english translations:
I haven't made up my mind yet.
- I am not sure yet if I will go to a university or get a job.
- I haven't decided yet whether I'll go to college or get a job.
I haven't decided yet, but I'll let you know by the time we leave.
I haven't decided yet, but I prefer flying to going by train.