I need this for my managing finance course.
presuming by LSE you were meaning London Stock Exchange Group.
If you just mean cashflow statement for companies listed on the LSE, pick a company and google ""Insert company name " annual accounts""
If London School of Economics try googling "London School of Economics Annual Accounts"
They are on page 48.
This is a good answer, but there are also secondary sources that give cash flow analysis of listed companies. Some like Stockopedia require subscriptions, but others are publicly avaliable such as this one.