I ran into this sentence in Complete IELTS book.
Some students may be critical of others who they perceive as doing nothing but study.
I haven't seen this structure before. Could you explain the grammar? If I was the writer myself, I would write: They perceive as students who merely study and don't do anything else. But using a verb+ing right after 'perceive as' sounds a bit unfamiliar and strange for me.
Please if it is a common type of usage, add more examples and walk me through the procedure.