Being a teacher of English, I can say that I know a lot about grammar. And, having taught English for 15 years, I know 100% for sure that different people can use different structures when giving presentations. As someone who has seen hundreds of presentations, I’m convinced that this is connected with the fact that some people, when giving a presentation, need to use grammar structures to prove they have experience / have knoweldge. Other people do not.
For example, I used three in this text:
Being a teacher of English, I can say that….
Having taught English for 15 years, I know 100% for sure that
As someone who has seen hundreds of presentations, I’m convinced that
I used these expressions to show you, the reader, that you should listen to me because I have experience / knowledge about this. If you do not know me, you may not think my opinion about a topic is important. So I use the above structures.
However, if you know about me, then I may not need to use these structures to show you should trust me. You already know and trust me.
For example, if Bill Gates gives a speech about the computer industry
does he need to say:
“Being the founder of Microsoft, I know that it takes a lot of time to create an international company.”
The answer is .. not really. He might say it, but most people know who Bill Gates is, and what he has done, so he can just say…
“I know that it takes a lot of time to create an international company.”
and we will accept this.
However, if you do not know the experience level of the person, then using the structures like “Being a …., ” / “Having …… ” / “As a…” can help. For example;
“Being a mother of 6 children, I know that it can be difficult to raise a child.” = greater expert than just “I know that it can be difficult to raise a child.”
To improve your ability to use these structures when speaking:
Click on the link here to read more examples
Fill in the last column of the table yourself and send it to your teacher for correction
Make a video / recording in which you ask yourself some questions, and then answer the questions using the structures.
Some example questions are:
What advice would you give to someone who… (wants to get a better job, wants to choose a university, has difficulty eating well, wants their children to play the computer less…)
How important …(are subjects like history, are universities when it comes to getting a good job, are zoos for educating children about animals, is it for the government to improve public transport)
What are the advantages and disadvantages of .. (traveling overseas on holiday, playing team sports, living in a cold climate, having brothers and sisters, working in a small company)