Is It Correct to Say “Please Rest Assured”?

It’s the small details that can make the biggest difference when it comes to language. For instance, should you say “rest assured” by itself or “please rest assured”? Is either option valid, or is one incorrect all the time? In this post, we’ll dive into the answer.

Is It Correct to Say “Please Rest Assured”?

It is correct to say “please rest assured”, though you can also say “rest assured” without “please”. “Rest assured” is an imperative, telling someone to “be sure/certain”. By adding “please” before it, you are requesting that someone be assured, instead of demanding it.

“Rest assured” is an idiom used to, well, assure people. When you tell someone to “rest assured”, you are telling them to be certain of something. For example:

• Rest assured; I will be there.

In this sentence, you are telling someone to be certain of your presence at a later date. Adding “please” before “rest assured” simply changes the statement from a command to a request. By adding please, you are requesting that someone be certain of your presence at a later date and location.

So, it is correct English to say “please rest assured”, though it is also grammatically correct to just say “rest assured” if you want to. Adding “please” just makes the phrase a little more polite, but it’s not actually necessary for the phrase to be correct.

Here are some examples of how to use “please rest assured” in a sentence:

1. Please rest assured, the police are doing everything they can in their investigation.
2. Please rest assured that I will be on time to the meeting tomorrow.
3. Jonathan will complete the project on time; please rest assured.

So, it is correct to use “please rest assured” if you want to. But what if you don’t want to? What if you aren’t comfortable using this phrase? In that case, we’ve compiled some alternatives. So, what to say instead of “please rest assured”? Check out the different options down below.

Other Ways to Say “Please Rest Assured”

Other ways to say “please rest assured” are “you can be sure, you can count on it”, and “you can be certain.” There are a few other alternatives, but these synonyms are the most straightforward options that mean the exact same thing as “please rest assured.”

That is why they are the best choices.

You Can Be Sure

“You can be sure” is the closest synonym to “please rest assured.” It means the exact same thing, just in slightly different words. It is an imperative telling someone to be sure, just like “rest assured.” If you want to make it a request, you can alter the phrase to be “please be sure”.

Here are some examples of how to use “you can be sure” in a sentence:

• You can be sure that the detective will spare no effort in finding your son.
• Mike is very punctual, you can be sure that he will arrive on time.

You Can Count On It

“You can count on it” is a very casual synonym for “rest assured.” It too is another way to tell someone that they can be certain of something. It’s not suitable for formal occasions, but is perfectly fine whenever formality is of no consequence.

It’s worth noting that, while it means the same thing, “you can count on it” is generally used as the end of a sentence, and not the beginning, like “please rest assured.” However, if you want to use “you can count on” alone, that can be used at the beginning.

Here are some examples of how you can use “you can count on it” in a sentence:

• I won’t miss the game winning shot, you can count on it.
• You can count on the team to get the job done.

You Can Be Certain

“You can be certain” is a very literal synonym to “please rest assured”, though it is arguably even more formal than it. It’s easy to use, since you can outright please “please rest assured” with it and the sentence will still make perfect sense. Only one extra word (such as that or of) may be needed.

Here are some examples of how you can use “you can be certain” in a sentence:

• You can be certain that we will do everything in our power to cure you.
• The sun will rise tomorrow morning, of that you can be certain.

Have No Fear

This isn’t a perfect synonym, but “have no fear” is very similar to “rest assured” in the sense that you are telling someone to be certain of something instead of having doubts or concerns. You can use it in any situation where you are assuring someone who is nervous or anxious about something.

Here are some examples of “have no fear” being used in a sentence:

• Have no fear, I’m sure your son just got lost playing with his friends.
• Have no fear, I am here to help you!

Don’t Doubt It

The opposite of certainty is doubt, so telling someone “don’t doubt it” is the same as saying “rest assured.” That said, it’s a very casual synonym and isn’t suitable for many situations other than informal speech with one’s peers. Otherwise, it’s a solid choice. You can also say “have no doubt”.

Here are some examples of how to use “don’t doubt it/have no doubt” in a sentence:

• Jeremy would never let us down, don’t doubt it.
• Our fort is invincible, have no doubt about that.

Rest Easy

“Rest easy” is a very similar phrase to “rest assured”, making it a perfect synonym if you would rather not use the latter. It’s also very easy to use, since all you have to do is replace “rest assured” with it in any sentence.

Here are some examples of “rest easy” in a sentence:

• Rest easy, the firefighters have successfully rescued your cat from that tree.
• The doctors managed to completely remove the tumor, so please rest easy.

Don’t Worry

A generally informal and casual synonym phrase, you can say “don’t worry” instead of “rest assured” in almost every scenario. After all, if someone is certain (of a good thing, at least) then they will not be worried.

Here are some examples of how to use “don’t worry” in a sentence:

• Don’t worry, I’m sure that everything will turn out alright in the end.
• Our best people are looking into the situation, so please don’t worry.

Don’t Sweat It

This synonym phrase is about as informal as you can get. You definitely wouldn’t say “don’t sweat it” in any formal situation, but this phrase does basically amount to “be sure because there’s nothing to worry about”. That means it is a perfectly valid alternative to “please rest assured.”

Here are some example of how to use “don’t sweat it” in a sentence:

• Everything will be fine, don’t sweat it.
• Don’t sweat it, I already took care of the problem.

“Please Be Rest Assured” or “Please Rest Assured”?

Some people get confused on “please rest assured” and “please be rest assured”, because one of them is almost right, if you just took out one word. The correct version of this phrase is “please rest assured.” Saying “please be rest assured” is grammatically incorrect.

That’s because “rest” in this context is a verb, and you can’t “be” a verb. You can “do” a verb, but not “be” a verb. Just ask yourself this; if you were going to suggest that someone should rest, would you say, “please be rest”? No, you would just say “please rest”.

What this means is that you can say “please rest assured” or “please be assured”, but you cannot say “please be rest assured”. Both “be” and “rest” are verbs, and if you remember anything from elementary English, you should know that you can’t have two verbs in one clause!

So, pick one or the other. At the end of the day, both phrases mean the same thing, they just have slightly different wording.