14 Adjectives Modifying Verbs: The ～く～

Grammar

Grammar: Adjective without い + く + Verb
Detailed Explanation: Adjective's 連用形 (conjunctive form) + Verb
Note: The 連用形 (conjunctive form) will be explained in detail in later lessons.
By removing the 「い」 from an adjective and adding 「く」 before a verb, the adjective modifies the verb. This means the adjective is used to further describe the action of the verb. For example, "waking up early," "going to bed late," "studying happily."

Examples:

母は毎日早く起きます。

My mother wakes up early every day.

私は毎晩遅く寝ます。

I go to bed late every night.

楽しく勉強します。

I study happily.

Adjectives with 「く」 + Verb:

The 連用形 (conjunctive form) of an adjective with 「く」 can be used to modify a verb. Simply remove the 「い」 from the adjective and replace it with 「く」 to directly connect it to the verb.

In the N5 grammar lesson 08, "Adjectives in the て-form" ～て～, it was taught that to form the て-form of an adjective, you remove the 「い」 and add 「く」. This lesson also uses 「く」 to connect adjectives to verbs!