Today’s grammatical word is “bound” and, even though it is technically an adjective, it doesn’t function as a typical adjective, so I’ve decided to write about it as a grammatical word. It’s not typical as an adjective because it must always be followed by a verb and then the rest of the sentence.
It is used when we are making a prediction about something in the future, and we feel quite certain that it will be true. For example:
There are bound to be a lot of pretty girls at Kelly’s party because she’s a model.
A: I was invited to have dinner at a French restaurant tonight.
B: Then you’d better take a lot of money with you. It’s bound to be quite expensive.
I don’t want to go to the dance club on Saturday night. It’s bound to be really crowded.
A: Do you think Jake will come to the dinner tonight at the seafood restaurant.
B: He’s bound to come. He really loves seafood.
My favorite basketball team hasn’t lost a single game this season, so they’re bound to win again tonight.
As you can see, the word “bound” is always followed by the infinitive (to + base form of a verb). Often, the verb is “to be”, as in the first three examples, but we can also use other verbs, as in the last two examples.
English Help Online's Blog 
Naoki Said:
on October 28, 2010 at 3:40 am
sorry to write a question about this entry late. Could you teach me the meaning of the word “bound” itself ?
englishhelponline Said:
on October 28, 2010 at 2:59 pm
Hi there.
The word “bound” has a few different meanings. I could write them all out, but it would be just as easy for you to read about them in The Free Dictionary. The link for that site is on my blog.
If you still have any questions after that, let me know.