Office use of Present Perfect and Simple Present

At the office we are challenged when we have to use the tenses. I thought," let me help you out, then."

Present Perfect Tense:

1. I have decided to move on.
2. I have promoted you to the next level.
3. I have chosen you for the project.
4. I have found you suitable for this position.
5. She has exceeded all expectations.
6. I have explained to him.
7. We have closed the deal.
8. She has shocked us.
9. The manager has raised the bar.
10. The worker has set standards for us to follow.
11. The virus has destroyed all the files.
12. We have been generous to the staff.
13. We have been kept on our toes. (by the management)
14. We have increased sales by 10%.
15. We have reduced wastage by 20%.
16. We have cut costs.
17. We have made history.
18. We have improved upon our last performance.
19. We have introduced a non disclosure clause.
20. We have terminated him.

The trick is to use have with a past participle. But then, you can begin by combining have with every past participle you find on the internet. Some of the sentences may seem legitimate but are not in usage.

Past simple:

1. I decided to move on.
2. I promoted you to the next level.
3. I chose you for the project.
4. I found you suitable for this position.
5. She exceeded all expectations.
6. I explained to him.
7. WE closed the deal.
8. She shocked us.
9. The manager raised the bar.
10. The worker set standards for us to follow.
11. The virus destroyed all the files.
12. We were generous to the staff.
13. We were kept on our toes.
14. We increased sales by 10%.
15. We reduced wastage by 20%.
16. We cut costs.
17. We made history.
18. We improved upon our last performance
19. We introduced a non- disclosure clause.
20. We terminated him.