Charting patterns I recognize

I recognize two of the five candlestick patterns and the four continuation patterns that give indications on impending price changes. I remember two candlestick patterns: the bearish double black gap, the bullish abandoned baby pattern. These are helpful to ID the next three to five sticks of price movement. For the continuation patterns, I don’t understand the difference between a symmetrical triangle and a pennant. A pennant differs from a flag in that a pennant is triangular and a flag is rectangular with parallel lines. A rectangle is a sideways trading flag. These help to id entry and exit points, usually based on the pattern’s height.