where/how words are stressed -> unchangable
The most common feet found in metred poetry are:
Iambs (unstressed-stressed, most frequent)
Trochees (stressed-unstressed)
Spondees (stressed-stressed)
Dactyls (stressed-unstressed-unstressed)
Anapaests (unstressed-unstressed-stressed)
Pyrrhic (unstressed-unstressed; only ever occurs with two words: “and the” or “we are”)