on condition that
Patois: Yu kyan kom, aan kondishan dat yu no misbeheiv.
English: You can come, on condition that you behave.
in the event that
Patois: In di ivent dat iit riein, di piknik wi kensel.
English: In the event that it rains, the picnic will be cancelled.
even though
Patois: Evn dou mi tiyad, mi a go finich dis projek.
English: Even though I'm tired, I'm going to finish this project.
whereupon
Patois: Im seh im tiyad, wearaapan im gah im bed.
English: He said he was tired, whereupon he went to bed.
notwithstanding
Patois: Natwidstain di riein, wi went a aikin.
English: Notwithstanding the rain, we went hiking.