Which is the best one 'disadvantaes IN doing sth', 'disadvantages OF doing sth' and 'disadvantages TO doing sth'?. Is it a question of prepositions or does it also depend on the subject or object you choose, i.e. There are a lot of disadvantages of/in/to doing sth' or 'The disadvantages of sth are many and...'. I hope I have made myself understood. Thanks.