Soprano:   \(\hat{4}\)  \(\hat{6}\)  \(\hat{1}\)

Bass:      \(\hat{4}\)  \(\hat{6}\)

Inversions:   IV  IV⁶

Doubling: All acceptable; doubling the root is most common.

   C: IV     IV     IV⁶

  \((\hat{4}\)\(\hat{4}\)\(\hat{6}\)\(\hat{1}\))     \(\quad(\hat{4}\)\(\hat{6}\)\(\hat{6}\)\(\hat{1}\))    \(\quad(\hat{4}\)\(\hat{6}\)\(\hat{1}\)\(\hat{1}\))