verb: 1. fear for somebody/something 'It's dangerous there so I'm gonna fear for you two, guys.'
2. fear that 'I fear that you may be injured.'
3. (formal) I fear to speak to my boss.'
4. fear somebody/something (= be afraid of) 'Mike seems to fear no one.'
noun: fear of somebody/something 'I have always had a fear of heights.'
These are the most common examples of using the verb and the noun 'fear'. It's not possible to say 'I fear of you'.
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