You can recognize a rhythmic scheme or a pattern by analyzing the number or feet in a verse. A foot consists of 2 syllables. That is why the most famous scheme in English poetry is called the Pentameter. That means that there are 5 feet, or, 10 syllables. There are various other options, however, such as the tetrameter, hexameter, trimeter, etc. Based on the position of the accent in a foot, a foot can be iambic, trochaic, anapestic, or dactylic. It can be many types more, but these four are most common.