Did I say I needed a day?

Having left my thesis alone for some time I started reading through it again. The science is fine. The grammar and sentance structure in general is horrific. I'm going through the chapters, printing out the pages where I think fixes are needed and writing notes on them. I want to see my supervisor about them before I go further, in case the fixes are just as bad as the originals...I'm printing out every second page at the moment.