1. 현재/과거/미래

[1] 현재

usually/often/every day/these days

I usually come home at 7 P.M.

[2] 과거

yesterday/ago/last+주, 달, 해/in+과거 연도

Interest rates rose last month.

[3] 미래

tomorrow/next+주, 달, 해/by, until+미래

We will have a new menu next week.

2. 현재진행/과거진행/미래진행

[1] 현재진행(am / is / are + ing)

now/right now/at the moment

The company is building an exhibition center now.

☆ now

-현재진행: 지금!

I am studying now.

-미래: 자, 이제!

I played enough games. I will study now.

[2] 과거진행(was / were + ing) → 과거

Zoe was revising the contract when he got a call.

[3] 미래진행(will be + ing) → 미래

I will be teaching at the university next year.

3. 현재완료/과거완료/미래완료

[1] 현재완료(have / has + p.p)

① 과거에 발생한 일(단순 사건 → 지금 내 상태)

I have eaten lunch.

② 상태가 현재까지 계속되고 있는 것(역사 → 지금껏 해온 일)

I have sold gum for 5 years.

☆ 현재완료의 근거

-since 과거시점

-over the last/past+기간

-for+기간

I have worked for this company since 2005.

Mr. Kim is not used to the electronic system at our firm because he has worked here for only 2 weeks.

[2] 과거완료(had + p.p) : 한 문장에 두 가지 사건이 있을 때, 먼저 일어난 일에 사용

I had played with fire, before my mom slapped my back.

[3] 미래완료(will have + p.p)

By next year, I will have lived in Hong Kong for 3 years.

미래완료의 근거

-by next+시간

-by the end of+시간

-next+시간

Mr. Kim will have submitted the document by next week.