Linking Arguments

First of all, I think …

Not only that, but I also think that …

Not only are they …, they are also …

They are not …, nor are they …

There are various/several/many reasons for this.

First, … / Firstly, …

Second, … / Secondly, …

Moreover, … / Furthermore, … / In addition, …

Another significant point is that …

Finally, …

On the one hand, … On the other hand, …

In contrast to this is …

Because of …

That is why …

After all, …

The reason is that …

In that respect …

The result of this is that …

Another aspect/point is that …

It is because …

Although it is true that … it would be wrong to claim that …

That may sometimes be true, but …

One could argue that …, but …

Providing Examples

Take for example (the case of) …

Look at …

For instance … / For example …

Let me give you an example.

Additions and Conclusions

Most probably …

It appears to be …

It is important to mention that...

As I already indicated …

In other words, …

I am most concerned about …

I should like to repeat once again that …

I should like to emphasize that …

I would (just) like to add …

So all in all I believe that...

(In) summing up it can be said that …

Weighing the pros and cons, I come to the conclusion that …