Some common expressions you can use for your presentations and meetings:

Introducing the Topic
My topic today is. . .
My talk is about. . .
The subject of my meeting/talk/presentation is …

Beginning a new Section
Now, moving on to. . .
I’d like to discuss. . .
Why don’t we look at. . .
The next topic/issue I’d like to focus on. . .

Finishing a Section
I think we’ve covered this for now.
That’s all I have to say about. . .
For my next point, I’d like now to discuss. . .

Analyzing a Point and offering Recommendations
We could. . .
This can mean. . .
Translated into real terms. . .
Let’s explore that in more detail. . .
What does this mean for. . . ?

Giving Examples
Case and point. . .
To you give you an example. . .
For example. . .
To illustrate this point. . .
A good example of this is. . .

Overview of the Presentation
Basically, I have four things to say. . .
First of all, I’ll. . .
There are several points I’d like to make. . .
I’m going to divide this talk into two sections/parts.

Paraphrasing and Clarifying
In other words, . . .
To put it another way. . .
To put it more simply. . .
What I mean to say is. . .

Summarizing and Drawing Conclusions
Now let’s recap. . .
In conclusion. . .
In short. . .
Unfortunately, that’s all the time I have for today, so let me sum things up briefly by saying that. . .
Let’s briefly summarize what we’ve covered. . .
Let me remind you of what I’ve covered, . . .

Signposts are incredibly important to learn as they inform your audience of what to expect, keeping them engaged at all times.