# Adverbs of Probability for intermediate learners

Adverbs of probability indicate how certain we are about an action. In this lesson, we will learn about how and when to use them.

## What Are Adverbs of Probability?

**Adverbs** of **probability** (also called **adverbs** of **certainty**) show us the __possibility__ of an event or action.

## Common Adverbs of Probability

Mainly, we have thousands of adverbs of probability in English. However, below is a list of several common probability adverbs. Let us take a look:

- Probably
- Likely
- Unlikely
- Surely
- Undoubtedly
- Possibly
- Maybe

## Structure

Some adverbs of probability __end__ in '-ly'. Take a look at the examples below:

I'd __ly__

She will __ly__

However, there are several adverbs of probability that do __not__ have an '-ly' at the end. Study the following examples below:

He will do as he's told,

## Where Do We Put Them in Sentences?

Adverbs of probability are mainly placed __before__ the main verb. Look at the following examples:

She should __visit__ a therapist.

They __had__ glasses yesterday.

## How Do We Use Them in Sentences?

In the table below, you can see adverbs of probability ranging from the __least__ __likely__ to happen to the __most__ __likely__ to happen:

Certainly | The most likely |
---|---|

Definitely | |

Obviously | |

Likely | |

Probably | |

Possibly | |

Perhaps | |

Maybe | The least likely |

Now, let us see some examples below:

I should

Here, the sentence is showing that there is the chance is 50% that the person go.

Here, there is little chance for the idea to be true.