This is the 1020th most frequent Korean word.
선택할
"To choose" or "select."
The verb '선택할' (choose) modifies '시간' (time) to describe that there isn't time to make a choice.
나는 오늘 점심 메뉴를 선택할 시간이 없다.
I don’t have time to choose the lunch menu today.
'선택할' is used to describe the action of choosing which will occur when deciding on the city for travel.
여행할 도시를 선택할 때 신중히 고려하세요.
Be careful when choosing the city to travel to.
The verb '선택할' is used as a modifier here to describe the options available to the user as those they can choose from.