Unit 25 :
Regular and irregular verbs

Pre-intermediate

Summary

Regular verbs form their past and past participle forms by adding –ed.

Regular verbs

Regular verbs form their past and past participle forms by adding –ed.

  • clean → cleaned
  • live → lived
  • paint → painted
  • study → studied

Simple Past tense 現在簡單式

1. I cleaned my room last week.

2. Michelle studied engineering in college.

Past Participle 過去分詞

・have/has + Past Participle

1. I have cleaned my room.

2. Jim has lived in L.A. for 20 years.

・be(is/are/were/has been) + Past Participle

1. These rooms are cleaned every day.

2. My car has been repaired.

Irregular verbs

Irregular verbs form their past and past participle forms in different ways.

There are mainly three types of irregular verbs：

1. Verbs in which all the three forms are the same.

put(s) → put → put

cut(s) → cut → cut

hit(s) → hit → hit

1. She always puts out her clothes for the next day.

2. She put her bag on the table yesterday.

3. Where have you put the keys?

2. Verbs in which two of the three forms are the same.

 sit(s) → sat → sat

make(s) → made → made

find(s) → found → found

1. She makes all her own clothes.

2. Butter is made from milk.

3. I have made some coffee.

3. Verbs in which all three forms are different.

drink(s) → drank → drunk

break(s) → broke → broken

know(s) → knew → known

1. Somebody breaks this window.

2. Somebody broke this window last night.

3. I’m so sorry, I think I’ve broken your phone.