QUESTION: Fix punctuation: Bend the bottom corner so that it went beyond the opposite side
ANS: Bend the bottom corner so that it went beyond the opposite side.

QUESTION: Fix punctuation: The closest airport for Formentera  Playa de Migjorn is
ANS: The closest airport for Formentera - Playa de Migjorn is:

QUESTION: Fix punctuation: A large LC Display over an easy to operate onoff switch on both models gives information per text display about all operational states and at the same time delivers suggestions for correcting any fault in easy to understand written form 24 languages are available
ANS: A large LC Display over an easy to operate on/off switch on both models gives information per text display about all operational states and at the same time, delivers suggestions for correcting any fault in easy to understand written form (24 languages are available).

QUESTION: Fix punctuation: Outdoors to add the ability to resist corrosion and UV radiation polyurethane coatings are used together with epoxybased primers
ANS:
Outdoors, to add the ability to resist corrosion and UV radiation, polyurethane coatings are used together with epoxy-based primers.