brickboo
The B natural is actually the flatted 5th or if you wish the raised 4th of the F scale

Please, please, please I stand corrected, Brickboo is right, the B note is incorrect. This is not about me defending error; it is about learning a solid correct foundation.
“Bb” is the 4th note of the F scale not “B”. But it cannot be referred to as a flatbed 5th. Although B and Cb are the same notes it will cause confusion in the future if they are not called by the Scale Step names. As we go on you will see this as a good learning step.

Next thought:
Since V7 to I is the most used progression in music let’s start here.
In the key of C major: V7 to I --- G7 to C. Instead of playing the V7 chord G7 for 4 or 8 beats IIm7 V7 I instead. (Dm7 G7) two beats each. This keeps movement in the harmony and bass line making it more interesting.
IMPORTANT; Your ear supplies the finale judgment on any of these ideas.

John C.