Subject + 会 + Verb
会 (huì) is an auxiliary verb meaning "will" (for future actions) or "can" (for learned abilities). When expressing the future, it indicates likelihood, as in 明天会下雨 (It will rain tomorrow). When expressing ability, it refers to skills acquired through learning, such as 我会游泳 (I can swim).
我会弹钢琴。
Wǒ huì tán gāngqín.
I can play the piano.
他明天会来接你。
Tā míngtiān huì lái jiē nǐ.
He will come pick you up tomorrow.
别担心,一切都会好起来的。
Bié dānxīn, yīqiè dōu huì hǎo qǐlái de.
Don't worry, everything will get better.