Preposition: that

• everyone: I know that I felt absolutely shattered, and I am certain that everyone on the other ships must have felt the same.

Modifies a noun

• circumstance: A director of a company may in certain circumstances be made liable for the debts of the company of which he is a director.

• amount: A certain amount of coercion or healthy bribery may be needed to practice!

• type: You also have an idea about whether you like certain types of work.

• extent: It was thought to be tempting fate to a certain extent.

• aspect: Did you need to modify certain aspects of your design?

• condition: Visual corruption of lowest pixel line of map under certain display conditions is fixed.

Modifying Another Word

• almost: The answer to the first question will almost certain l y be yes.

• fairly: I'm fairly certain, I know the exact date and time.

• however: There are however certain jobs where good binocular vision is important and necessary.

• only: Answer Only certain groups of people are eligible for travel concessions.

Infinitive complement

• provoke: It is certain to provoke debate and discussion, not least about how and why certain films enter the nation's consciousness.

• continue: Development of technology for disposal of irradiated fuel elements is almost certain to continue on an international basis.

• win: I urged Rhodri to stand down because I was convinced that Ron was certain to win.

• encounter: Unless you do so, you will be certain to encounter trifling and procrastination which will defer your plan to the Greek Kalends.

Used with adjective complement

• seem: DO YOU THINK COMING HERE WILL HELP YOU NOT TO BE UNHAPPY I need some help, that much seems certain.

• feel: Somehow I feel certain that the address at which I lived at the time of the Bath Blitz was 2 Midland Bridge Road.

• look: Today the continued supply of wonders looks less certain.

• make: I made certain that all the configuration files were properly tweaked for his particular computer.

Preposition: of

• victory: We are certain of victory once again this year Im sure!