Answer:
James Weldon Johnson uses a regular iambic tetrameter meter in the poem
Explanation:
Fifty Years is a ceremonial poem that follows the iambic tetrameter meter. This a meter that has a construction of four iambic feet. An Iamb is represented by a short syllable followed by a long syllable, this has also the variant where we can see an unstressed syllable followed by a stressed syllable.