Answer:

Sent in by Jitendra Shah (location unknown), this question delves into the fractal nature of wave theory.

There are two categories of Impulsive patterns (Trending and Terminal under NEoWave theory - Standard and Diagonal Triangle under orthodox Elliott Wave), which you can read about in Mastering Elliott Wave (Chapter 5).

In a Trending Impulse, wave-1 will subdivide into 5 segments, wave-2 will be corrective (usually 3 segments), wave-3 will again be 5 segments, wave-4 will be corrective (usually 3 segments) and finally wave-5 will be 5 segments.

In a Terminal Impulse, all waves (1, 2, 3, 4 & 5) will be corrective (normally 3 segments each) with waves- 1, 3 & 5 normally Zigzazgs (or complex corrections) and waves-2 and 4 normally Flats and Triangles (respectively).