Irregular verbs and regular verbs.
An irregular verb is a verb that does not follow that rule.

For example, drink is an irregular verb because the past form of drink is drank, and not "drinked"


Go is an irregular verb too. That is because the past form of go is went, and not "goed".
The English language has a great number of irregular verbs. Some of these are:

​



Infinitive
Past Participle
Awake


Become


Break


Choose


Cut


Drink


Eat


Fly


Go


Know


Sing



​Awoke


Became


Broke


Chose


Cut


Drank


Ate


Flew


Went


Knew


Sang



Awaked, awoke


Become


Broken


Chosen


Cut


Drunk


Eaten


Flown


Gone


Known


Sung
Past simple