The phrase "apprehensive of using" is correct and usable in written English.
It can be used when expressing a feeling of anxiety or hesitation about using something.
Example: "She was apprehensive of using the new software, fearing it would be too complicated."
Alternatives: "worried about using" or "hesitant to use".
The survey of 410 people found that 66% of respondents said they would be apprehensive of using a voice assistant in a hotel room, because of concerns over privacy, 90% said they would like to control the ways corporations use their data, even if it meant sacrificing convenience.
Initially, some of the nurses were slightly apprehensive of using a computer system during the patient interview due to a lack of familiarity with computers as well as concerns about the potential impact on the patient's experience and satisfaction during the appointment.
"Many of the coaches are a bit apprehensive about using the sites," Mr. Flammang said.
In line with our wider CONNECT findings, CATCH practitioners described how they were initially apprehensive about using deferred consent arising from their lack of previous experience with the method.
It turned out the board was apprehensive about using investment capital in this way.
Initially researchers were apprehensive about using Apollo.
Concerns about the equality of the interchangeable drugs, experiences of change in effect or more side-effects, and confusion regarding counterfeit drugs made many patients apprehensive about using the cheaper generic alternatives.
Research also shows that staff are frequently apprehensive about using computers and may have limited skills [ 36, 37 ].
For their part, as elsewhere, policy makers were apprehensive of possible adverse effects of ivermectin and its safety in large scale community use.
But experts are apprehensive of how the Government may react.
