... development / concentrate on thelesson …(e) Manner/means: diet on bananas, go on foot(f) Circumstances: on arrival, on my return, on the condition that …(g) Cause/ reason: congratulate some one on his ... said that most prepositions arehighly polysemous. By semantic classification, prepositions can be named of:- Spatial relations: location (inclusion, exclusion, proximity), direction (origin, path,end ... Errors2.7. The concepts of Prepositions 2.7.1. Syntactic characteristics of Prepositions 2.7.2. Semantic characteristics of Prepositions 2.8. The Spatial Prepositions “AT, ON, IN”2.8.1. Usage...