1. Identify the Parts of Speech:
* had: Auxiliary verb (past participle of "have")
* overslept: Verb (past participle of "oversleep")
2. Determine the Sentence Structure:
* The sentence is a simple sentence, meaning it has one independent clause.
* The structure is a verb phrase consisting of an auxiliary verb followed by a past participle.
3. Draw the Tree Diagram:
```
S
|
VP
/ \
Aux V
/ \
had overslept
```
Labels:
* S: Sentence
* VP: Verb Phrase
* Aux: Auxiliary Verb
* V: Verb
Explanation:
* The top node "S" represents the entire sentence.
* "VP" is the verb phrase, which is the main component of the sentence.
* "Aux" is the auxiliary verb "had".
* "V" is the main verb "overslept".
Note: The sentence "had overslept" is in a past perfect tense, which is formed using the auxiliary verb "had" followed by the past participle of the main verb.