1. Dealing with government bureaucracy in some countries involves a lot of red tape.
2. By the time I'm 55, I'll have retired.
3. Our business has been really taking off since we started advertising on Google.
4. If they hadn't done such a bad job last year, we wouldn't have gone with another company this time.
5. I implemented those changes last week.
6. Over the past three and half years, I have been involved in a number of interesting projects.