After worked in medicine or after working in medicine / After qualified in medicine or after qualifying in medicine. How can we use these in sentences and how can we decide to choose correct ones? Please help
Top answer
Only the present participle is correct after prepositions such as before, after, when, while, etc.
— Fivejedjon
Only the present participle is correct after prepositions such as before, after, when, while, etc.
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Use the "-ing" form in such contexts. e.g. After working in medicine for almost 30 years, Jane felt it was time to retire. After qualifying in medicine, he decided to pursue a career in research.
Note that "after worked in medicine" and "after qualified in medicine" are incorrect.