This is the 398th most frequent Swedish word.
behöva
"Behöva" means "to need."
Here, "behöver" (present form of "behöva") is used to express a necessity or requirement for something.
Jag behöver vatten.
I need water.
Here, "behöver" is paired with "inte" to express a lack of necessity.
Du behöver inte oroa dig.
You don't need to worry.
Here, "behöver" is used in a conditional statement to express a potential future necessity.