German speakers can be very precise at predicting sentence final separable prefixes. The significant correlations between accuracy, the percent of the total corpus of a specific verb-stem-prefix pairing, the total number of other co-occurring prefixes, and a second co-occurrer's presence all drive the varied item results. Prediction is very depending on individual words' features and distributions. The skill to predict others' words could be regarded as particularly notable for human development and communities' formation via alignment.