Use the word "doubt" if you aren’t sure if something is true or correct.

In these sentences, "doubt" is a verb:

  • I doubt he’s telling the truth. I think he’s lying.
  • Almost everyone doubts John’s story about the size of the fish he caught.
  • Tina’s parents never doubted that she was telling the truth about what she saw.
  • Mary doubts herself all the time.
  • Joseph doubts his chances of finding a job.

In these sentences, "doubt" is a noun:

  • There are many doubts about his abilities as a leader of this company.
  • Doubts about the man’s background led to his arrest. It turned out he was a criminal.
  • We have some doubt that this plan will work.
  • Their future together as a couple is in doubt.
  • I’ve had some doubts about you, but it looks like I was wrong.

Add "ful" to the word "doubt" to make the adjective, "doubtful."

  • It’s doubtful that he’ll get the position.
  • The chances for precipitation this weekend are doubtful.
  • A doubtful police officer listened to the driver explain why he was speeding.

Note: As you have probably noticed, the "b" in this word is silent.

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Published on January 9, 2013