Once you start smoking, it is difficult to get rid of that bad habit.
I can't start up my computer. What am I supposed to do?
If you can't visit a country where they speak the language you are learning, find a local bar where native speakers of that language hang out and start hanging out there.
Did you start to learn the piano when you were three, like Mozart?
If you don't start treating people with a little more respect, people may start avoiding you like the plague.
Could you please tell me again when the meeting is supposed to start?
You can't just come in here and start ordering people around.
Let me tell you what's going to happen if you don't start behaving yourself.
Start reading where you left off.
When writing a sentence, generally you start with a capital letter and finish with a period (.), an exclamation mark (!), or a question mark (?).
Do you know how to start a fire using just sticks of wood?
I have so many things to tell you that I don't know where to start.
Many flowers start blooming in springtime.
Once we start reading a book, we should read it all the way through.