Noun change

Singular
harpoon

Plural
harpoons

  1. The plural form of harpoon; more than one (kind of) harpoon.

Verb change

Plain form
harpoon

Third-person singular
harpoons

Past tense
harpooned

Past participle
harpooned

Present participle
harpooning

  1. The third-person singular form of harpoon.