If you speak English you actually already know a lot of French!
Words ending in ‘ible’. Same spelling and meaning in French as in English.
accessible, admissible, audible, bible, comprehensible, convertible, credible, destructible, indestructible, deductible, flexible, horrible, impassible, imperceptible, intelligible, invisible, irresistible, irreversible, plausible, possible, impossible, reprehensible, submersible, terrible, visible.
Words ending in ‘able’. Same spelling and meaning in French as in English
abominable, adorable, acceptable, admirable, agreable, applicable, approchable,
biodegradable, capable, cable, changeable, inter-changeable, charitable, comparable, incomparable, controlable, defendable, enviable, explicable, fable, table, honorable,
imaginable, impeccable, impressionable, capable, incapable, miserable, memorable, observable, preferable, recyclable, table, vulnerable.
Words ending in ‘ent’. Same spelling and meaning.
Different, absent, abstinent, accent, accident, agent, apparent, ambivalent, compliment, condiment, decadent, denouement, detriment, effervescent, eloquent, element, enjambement, excrement, fluorescent, frequent.