The Useful Language Items Table:

Introducing the topic/problem

Today I am going to talk about..
Today we're here to discuss...
The goal of this presentation is...
The topic of this presentation is...

Clarifying a point

What I mean by this is...
What I am trying to say is...
My point is...
The point I am trying to make is...

Cause & effect

Because of this...
As a result of this...
It would seem that (because of this)...
That is because...

Persuading & convincing

You must admit that...
You must remember that...
Let's face it...
Don't forget that...
Surely you will agree...
Surely it will make more sense...

Giving an opinion

In my opinion...
As far as I am concerned...
Personally I believe that...
The way I see it...
To be honest...
I must say that...

Making suggestions

Let's...
How about..?
I think you/we should...
We/you/one could always...

Summarising

What I am trying to say is...
So to summarize...
Let me now sum up...

Concluding

Finally, I would like to say...
To conclude then...
I would like to conclude...

Asking for questions

If you have any questions...
Do you have any questions for me?
I would like to welcome questions...