I tried to summarize my rephrase in a few words. Could you please check them?

1) Caliban is kept prisoner in a cave by Prospero.
2) When Prospero interrupts his meal, Caliban curses both Prospero and Miranda and hopes that they will get drenched with the same dew his mother used to collect from unhealthy swamps. 3) He also hopes that a south-west wind will blow on them and cover them withblisters. On his turn Prospero says that Caliban will suffer horrible pains which will prevent him from breathing.
4) As a punishment he will aslo be pricked by goblins at night.
Caliban claims that at the beginning Prospero treated him well since he gave him food and taught him his language.
5) Now Prospero keeps him locked up in a cave and treats him like a slave.
Miranda says that though she used to teach Prospero something new every hour, he responded better to the whip than to kindness.

southwest (one word)

with blisters (two words)

also (typo)

All the rest is really good! Nice!!

1) Caliban is imprisoned in a cave by Prospero.

2) Caliban curses Prospero and Miranda when they disturb his meal, and wishes that they will be drenched with the same dew his mother collected from unhealthy swamps.
To check your rephrasing, you can compare it to the original sentence and make sure the meaning is retained while the wording is changed.
3) In addition, Caliban hopes that a south-west wind will blow on them and cause them to develop blisters. In response, Prospero predicts that Caliban will suffer severe pains that will make it difficult for him to breathe.
4) As further punishment, goblins will prick Caliban at night.
To check this rephrasing, you can compare it with the original sentence and verify if the meaning remains the same but the wording is different.
Caliban claims that initially Prospero treated him well by providing him with food and teaching him the language.
5) However, Prospero now keeps Caliban confined in a cave and treats him as a slave.
Miranda adds that although she used to educate Prospero every hour, he responded better to punishment than kindness.
To verify this rephrasing, compare it to the original sentence and ensure that the meaning is preserved with different wording.