Plurals and Machine Learning Using older machine learning models to conjugate English verbs produced rather silly results. These models performed at an acceptable level for many words, but when given nonsense words as an input these models would produce humorous conjugations. For example, we have: Verb Human Generated Past-Tense Machine Generated Past-Tense mail mailed membled conflict conflicted conflafted wink winked wok quiver quivered quess satisfy satisfied sedderded smairf smairfed sprurice trilb tribled treelilt smeej smeejed leefloag frilg frilged freezled Naturally, my girlfriend and I found this hilarious.