[HUE]

If you only have 45 minutes to teach the lesson, I would be cautious on presenting too much. So many teachers want to be thorough, but then don't cover any aspect of the grammar in enough detail for the students to understand it, gain confidence with it, and then use it. I would:

1. Limit myself to using the present perfect continuous to talk about actions with an "up to now" focus. When presenting the material, I might briefly use the present perfect as a springboard into today's grammar. Of course, you can teach a different use for the language, but I would limit myself to one aspect.

2. Plan the kind of end activity you want to do with the grammar. Is it a conversation? A role-play? Maybe a board game that focuses on speaking? From the final activity, plan backwards. What words, phrases, and questions will you need to present and practice earlier in the lesson? For example, if the final activity is a role-play in which two "friends" have a chat about their lives, the vocabulary will likely be different than two "business colleagues" talking about work. Earlier in the lesson, you would want to incorporate some of these ideas/sentences to be reused with the grammar later. This will add better flow to the lesson, and get students using the language more confidently than a series of worksheets or speaking activities with no relation other than the grammar point.

I hope this helps, and good luck!!