From isn't a verb and so doesn't have any tenses.
The past participle of slept is slept.
The past participle is "slept".
" to have slept"
Slept is the past tense and past participle of sleep.
No, "slept" is the past participle of "sleep".
Slept is the past tense and past participle of sleep.
sleep/slept/slept
The past participle of "sleep" is "slept."
It's also slept.
Sleeping is the present participle; slept is the past participle.
The past tense of sleep is slept. The past participle is also slept.
Present perfect is formed with have / has + past participle. The past participle of sleep is slept, so the present perfect is have slept or has slept eg They have slept all day She has slept all day
sleep is the base form slept is the past simple form slept is the past participle.