depends
v.v. to be decided by something else. You use this when you cannot give a certain answer because the result relies on the situation.
v. to be determined or conditioned by another factor. Intransitive in this sense; requires a prepositional phrase to specify the contingency.
The price of the trip depends on the date.
Whether we go for a hike tomorrow depends entirely on the weather forecast and if the trails are dry.
The success of the merger depends on how effectively the two corporate cultures can integrate their disparate management styles over the next fiscal year.
The verb is intransitive and almost always takes the preposition 'on' or 'upon' before the object.
It depends of the weatherIt depends on the weatherIn English, the verb 'depend' takes the preposition 'on', not 'of'.