"If I had not gone to school, I would not know how to read"
Translation:Nisingalikwenda shule nisingalijua kusoma
You can use either. There's optional variation in including the "kw" (only in verb forms that take the "-ku-" with the monosyllabic verbs though!) ... in this course, they have just been inconsistent and no one's been around to fix up the mistakes and process the reports.