Thanks for writing in!
I suggest you to use Text element or Headline element for this and then use HTML
<span></span> tag. Here's an example that you can take a look.
Build <span class="build-with-us-style">with us</span>
font-family: 'Bonbon', cursive;
Please change the values and font family as per your requirement.
Here's a example of the output that you will get after using above code.