Liver is pronounced LIV-ər (IPA /ˈlɪvər/). Tongue touches the roof at the front for /l/, never curls back.
IPA: /ˈlɪvər/
Syllables: LIV · ər
Common ESL mistake: Learners confuse with 'river' using /r/ instead of /l/.
Tip: Tongue touches the roof at the front for /l/, never curls back.