Capping couplet is one rhymed couplet of two lines, which have the same metre. These are typically found at the end of poems or at the...

For years and years we only use We take, We break, We start to lose The smoke, the waste, the plastics float We cut, We burn, We drain...

Heroic couplet is a form of iambic pentameter. They are a pair of iambic pentameters with a rhyming metric template such as aa, bb, cc...