Overall, …
On balance, …
Briefly, …
In short, …
Essentially, …
an overview of …
a brief outline of …
a brief account of … is given below etc.
To summarize US and GB or summarise GB:
In summary, we have shown that …
In summary, we can state that …
… can be summarized US and GB or summarised GB as follows:
The main points are:
there are a number of points worth reiterating:
The discussion so far has focused on …
In this section, … was presented
The purpose of this section has been to …
We have sought to explain or clarify …
It has been shown in this chapter …
The effects of … on … were studied in …
This study has shown …
This study has attempted to …
The study represents a first or initial attempt at or to …
In this study, we have investigated or examined …
A main point of this study has been to …
It is the central argument of this study that …
Chapter X draws together the main findings of the study.
One of the most important findings of this study is …