Thank you for your post @paul-m You gave a great example of how teachers and students can use advanced functions of n-grams. It can be the starting point of the search i.e. What are the most frequent lexical bundles that contain the modal verb could?, followed by further qualitative analysis of a few examples e.g. it could be argued, could be used to, could be due to, etc. Alternatively, students can start with examining the concordance of could to hunt for patterns, then use n-grams to see which of the most frequent they were able to identify. By the way, you won’t have to worry about tags from today because this is what we are focussing on in Unit 6 ;) I hope it will all become clearer after this week. But, I agree with you that it will take time, and perhaps a bit of that rabbit hole experimenting, to get used to the various search functions.