Sencillo ejemplo de un formulario c/ RHF

gistfile1.txt

import { useForm } from "react-hook-form";

const Login = () => {
  const { register, handleSubmit } = useForm();

  const onSubmit = (data) => {
    console.log(data);
  };

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <label>
        Email:
        <input
          type="email"
          name="elchavodelocho"
          ref={register} 
          placeholder="Email"
        />
      </label>
      <label>
        Password:
        <input
          type="password"
          placeholder="Password"
          name="password"
          ref={register}
        />
      </label>

      <button>Login!</button>
    </form>
  );
};

export default Login;