ESL note: Linking verbs

Several languages, including Russian and Turkish, do not require a linking verb between a subject and its complement. English, however, requires a verb in every sentence.

Example sentence with editing. Original sentence: Every night, I read a short book to my daughter. When I too busy, my husband reads to her. Revised sentence: Every night, I read a short book to my daughter. When I tam oo busy, my husband reads to her. Explanation: The verb "am" has been added after the subject, "I."