Head and Shoulders

Indicates a reversal of the trend once completed.

The neckline is watched for potential breakout lower.

An Inverse Head and Shoulders is where the neckline is watched for potential breakout higher.

Double Tops and Bottoms

Formed after a sustained trend and indicates a possible trend reversal.

Triple Tops and Bottoms

Not as prevalent as Head and Shoulders or Double Tops and Bottoms, but are a similar indication of a trend reversal.

Triangles

Shows a convergence of two trend lines and that a breakout is likely to occur. Direction is not indicated.

Occur frequently, and can form over weeks and months.

Flags and Pennants

Short term indicator of consolidation following a sharp price movement.

Need more info about what happens next.

Cup and Handle

Bullish pattern where an upward trend has paused, but may continue when the handle is formed.