110. Transitive verbs 

• Incorrect: Here is my cup; please fill.

 • Correct: Here is my cup; please fill it. 

 • Incorrect: I enjoyed when I went to Paris. 

• Correct: I enjoyed myself when I went to Paris. 

All transitive verbs (e.g. fill, break, take and bring) must have an expressed object. 

Some transitive verbs (e.g. give and lend) must have two objects.

 • Incorrect: I asked for my book, but he didn't give me. 

• Correct: I asked for my book, but he didn't give it to me. 

(Here the pronouns it and me are the objects of the verb give.)