What is the primary function of the modal verb 'can' in a sentence?

mdaw

isabella.molinelli

pc.k

nunesgm

samra.faisal

jocelyn.molina-mancio

mamta.rajani

matheen03

kylebrady

heather.dow

anna.kimble

john.hanron

ranjeet.kaur

aorantes

justmurmur

mwindram

ymerinogallegos

forraiova.lenka

katarina.bojnanska