Inchworm, Inchworm
Measuring the marigolds
seems to me you'd stop and see how beautiful they are
Inchworm, Inchworm
Measuring the marigold's
seems to me you'd stop and see how beautiful they are
2 and 2 are 4
4 and 4 are 8
8 and 8 are 16
16 and 16 are 32...
(repeat all verses)

Note: An apostrophe is only used to show possession and to take the place of missing letters in a contraction of two words. In this case, if there was an apostrophe, one would ask, "Measuring the marigold's what?" Instead, the inchworm is measuring more than one marigold. So it makes sense to say, "Measuring the marigolds".