I think （我認為)
其實除了 I think 之外，還有其他的說法可以使用：
It seems like...
It seems to me (that)...
If you ask me, ...
* It seems to me that people don’t spend enough time with your family.
* It seems like it’s not a good idea to take work home on the weekends.
* If you ask me, people should get more time off.
* It seems to me that there’s a lot of pressure to work long hours.
* If you ask me, everyone is way too busy these days.