"I like to eat borsch."
Translation:Я люблю їсти борщ.
Ah, you will learn about this later on or you can look right here: http://www.ukrainianlanguage.org.uk/read/unit10/page10-1.htm but basically the verbs are conjugated. Many languages conjugate verbs. Їм means "I eat" while їсти means "to eat"; їсти is an ---IRREGULAR--- verb in Ukrainian so here are the present tense forms:
To eat: Їсти
I eat: Я їм
We eat: Ми їмо
You eat: Ти їси (informal you)
Y'all/You eat: Ви їсте (plural you or singular formal)
They eat: Вони їдять
S/he/it eat: Він/Вона/Воно їсть
Remember that these could also mean xxx am/is/are eating because Ukrainian doesn't really have the present verb "to be". That whole verb chart might seem confusing but trust me, with practice and time it's really easy