"avoir trop dormi"
She overslept : Elle a trop dormi
J'ai dormi trop longtemps
'I overslept' 'You overslept' 'She overslept' ect ect ect.
Overslept is a verb...As in -- he overslept...HE (A PRONOUN) is the subject of this short sentence and OVERSLEPT is the VERB predicate...
The prefix of "overslept" is "over-".
There is no way to diagram "Had overslept", because "Had overslept" is not a sentence. For a phrase to be a sentence, it must have both a subject and a verb. "Had overslept" has a verb (had) but not a subject. A subject could be a person, place, or thing. For example: "Alicia had overslept."
Overslept is the past participle and past tense of oversleep.
It is Overslept
For reasons not fully explained they both overslept but only awakened when they realized that the fire has gone out .
hangover
Overslept
The past tense of oversleep is overslept.
sick, traffic, overslept