The attached image summarize the four major corrective wave families in Elliott Wave Theory: Zigzag, Flat, Triangle, and Combination.

Zigzag: Includes Single, Double, and Triple Zigzags. A Single Zigzag has a 5-3-5 structure, while Double and Triple Zigzags connect multiple Zigzags through X waves. Zigzags commonly appear in Wave-2, Wave-4, Wave-B, and other corrective positions.

Flat: Includes Regular, Expanded, and Running Flats, all based on a 3-3-5 structure. Flats can occur in Wave-2, Wave-4, Wave-B, Wave-X, and several combination positions.

Triangle: Includes Contracting, Barrier, Expanding, and Running Triangles, each normally having a 3-3-3-3-3 structure. Triangles commonly occur in Wave-4, Wave-B, Wave-X, and within combinations.

Combination: Includes Double Three and Triple Three, which combine corrective structures using W-X-Y or W-X-Y-X-Z formations.

Overall, corrective waves move against the larger trend and can vary considerably in structure. Alternation is an important guideline: different waves within these patterns may alternate between different corrective forms, helping create variation rather than repetitive structures.