Subgroups of Frobenius group

Question

Let $G=N\rtimes M$ be a finite Frobenius group with kernel $N$ and complement $M$. Suppose that $N$ is a minimal normal subgroup of $G$, while $M$ is maximal in $G$. Is there a result which states something about the form of the subgroups of $G$? For instance, besides the subgroups of $N$, the subgroups of $M^g$ and the subgroups $NH$, where $1<H\leq M^g$, are there any other subgroups in $G$? As usual, $M^g$ denotes a conjugate of $M$.