is there a rule for when i should abbreviate the pronoun after a noun and when not to? For example, my friend corrects me and says that I should say lakay MWEN, not lakay m.

Yes, there's a rule.

Contractions don't follow consonants.

They only come after vowels (nasal and non nasal → a, an, e, è, en, i, o, ò, ou)

Follow this link about CONTRACTIONS: http://sweetcoconuts.blogspot.com/2011/11/contractions-contracting-haitian-creole.html

Ask me anything