아무래도 V/A+ 을/ㄹ 것 같아서

It is used to indicate that, even after a long time of thinking about it the speaker is somewhat certain of what he guessed and behaved for that reason.

If the stem of an action verb or a descriptive verb ends with a vowel or ‘ㄹ’, you should use ‘-ㄹ 것 같아서’, with another consonant, you use ‘-을 것 같아서’.

아무래도 운전해서 가면 지각할 것 같아서 지하철을 탔어요.
I thought I’d be late for driving, so I took the subway.

아무래도 병원에 가 봐야 할 것 같아서 좀 일찍 퇴근을 하려고 해요.
I think I need to go to the hospital, so I’m going to leave early.

아무래도 음식이 부족할 것 같아서 재료를 더 사러 가고 있어요.
I’m going to buy more ingredients because I don’t think there’s enough food.

Conversation:

김 과장, 이번 프로젝트는 잘 진행되고 있어요?
Ms. Kim, how’s the project this time going?

네, 부장님. 순조롭게 잘 되고 있습니다.
Yes, sir. It’s going well.

중국 지역 조사 담당자는 누구예요?
Who’s in charge of investigating the Chinese area?

아무래도 중국어를 잘해야 할 것 같아서 민철 씨한테 맡겼어요.
I thought the person should be good at Chinese so I left it to Mincheol.

입사한 지 얼마 되지도 않았는데 너무 부담스러운 일을 맡긴 것 아니에요?
It’s not long since he joined the company, didn’t you give him a job that’s too burdensome?

팀원들 모두 민철 씨가 적임자라고 생각하고 있어서 그렇게 했습니다.
Everyone in the team believed Mincheol was the right man so I did so.

그래도 신입 사원이니까 김 과장이 계속 관리 좀 해 주세요.
But still, he is a new employee so you Ms. Kim please keep an eye on him.

네, 차질 없도록 잘 하겠습니다.
Yes, I will make sure things don’t go wrong.

Related words
순조롭다: to go well
적임자: the right man
차질: going wrong
지각: being late

Source: Yonsei University. Korean Language Institute