notadictionary.com
Je croyais que cette homme me fixait comme un psychopathe jusqu'à je réalise qu'il a mis ses lunettes à l'envers
→ “I thought this man was staring at me like a psychopath until I realized he put his glasses on upside down.”
Je — I (subject pronoun)
croyais — thought / believed → past tense, imperfect of croire; here implies a continuous state of thinking in the past.
que — that (conjunction introducing a clause)
cet homme — this man → 'cet' is the elided form of 'ce' before a vowel sound
me — me (object pronoun)
fixait — was staring / fixed → past tense, imperfect of fixer; describes an ongoing action in the past
comme — like / as (preposition/conjunction)
un psychopathe — psychopath (noun)
jusqu'à — until → contraction of 'jusque à', used before a clause starting with a vowel or mute h
je — I (subject pronoun)
réalise — realize → present tense, 1st person singular of réaliser
qu' — that → elided form of 'que' before a vowel sound
il a — has (auxiliary verb for compound tenses)
mis — put → past participle of mettre; forms passé composé with 'a'
ses — his/her/their (possessive adjective, plural)
lunettes — glasses (noun, always plural in French)
à — to / at / in (preposition)
l'envers — upside down / inside out → 'l'envers' is the noun form meaning 'reverse side'; often used with 'à' to indicate orientation
