why not a lesson in verb conjugation?
i would like a lesson in verb conjugation.
Verb conjugations are taught in the skills, there could be instructions in the Tipps and notes section of the skills. For pattern drills I use some apps apart from Duolingo.
I use this free app for the irregular verbs and pattern drills: https://play.google.com/store/apps/details?id=com.mediayog.spanishverbs1
And here is some grammar: https://www.duolingo.com/comment/3189039/Spanish-Regular-Verb-conjugation-tables