Man pages matching name apertium-validate-modes in section 1:

apertium-validate-modes.1.en	debian 10 / apertium-dev
apertium-validate-modes.1.en	debian 11 / apertium-dev
apertium-validate-modes.1.en	debian 12 / apertium-dev
apertium-validate-modes.1.en	debian 13 / apertium-dev