English grammar

Module 3, Verbs, Lesson 7:

Irregular Verbs

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English grammar
Definition:
Irregular verbs are verbs that do not form the past and participle by adding -ed. All irregular verbs form the present participle by adding -ing. Irregular verbs may change vowels, consonants, both vowels and consonants, or may stay the same.
Infinitive Present Present Participle Past Past Participle
to run run(s) running ran run
to drive drive(s) driving drove driven
to begin begin(s) beginning began begun

The verb to be is the most irregular verb in English.

Infinitive Present Present Participle Past Past Participle
to be am / are / is being was / were been

Irregular verbs can be sorted into groups by pattern, but the patterns don't help you remember the forms. For the most part, these need to be memorized. Most people memorize them simply by hearing them, reading them, or being corrected.

The patterns are:

  1. present, past, and past participle are the same. (put/put/put)
  2. past and past participle are the same (catch/caught/caught)
  3. past + n or en forms past participle (freeze/froze/frozen)
  4. present + n/en/ne forms past participle (do/did/done)
  5. final vowel changes from i in present to a in past to u in past participle. (begin/began/begun)
Hint:
If you aren't sure, look up the verb in the dictionary. If the verb is irregular, the dictionary will give you the past and past participle form.

Try it out:

Fill in each column for the given verb. Then check your work. Practice the ones you miss.

Infinitive Present Present
Participle
Past Past
Participle
to seek
seek
seeking
sought
sought
to swing
swing
swinging
swung
swung
to choose
choose
choosing
chose
chosen
to get
get
getting
got
gotten
to drink
drink
drinking
drank
drunk
to swim
swim
swimming
swam
swum
to bring
bring
bringing
brought
brought
to ride
ride
riding
rode
ridden
to begin
begin
beginning
began
begun
to drive
drive
driving
drove
driven
to know
know
knowing
knew
known
to write
write
writing
wrote
written
to sink
sink
sinking
sank
sunk
to burst
burst
bursting
burst
burst
to cost
cost
costing
cost
cost

Practice What You've Learned

English grammar
Directions:
Choose the correct form of the verb to complete the sentence.
1.
In the past I have flew/flown on airplanes many times.
2.
Mother cut/cutted herself while she was cooking dinner.
3.
My grandmother has knew/known her best friend for sixty years.
4.
If our train hadn't been late, we would have went/gone to the Vatican today.
5.
I wish you had keeped/kept my secret.
6.
I looked all over for my homework, but it must have been throwed/thrown away.
7.
After buying a new set of golf clubs, Ron quit/quitted playing golf.
8.
I am excited to report that our school's team winned/won the math competition.
9.
I was sure you knew/knowed the answer to that question.
10.
When the wind blew/blowed the tree down, we knew it was sick.
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