English Language Lab

English Language Lab

The Tiny Words That Make You Sound Confident in English

The Art of Persuasion

Rachel Boyce's avatar
Rachel Boyce
May 07, 2026
∙ Paid

Imagine two job candidates in an interview.

  • The first says: “I think I could maybe do this role well.”

  • The second says: “I’m confident I can deliver strong results in this role.”

Same language level. Same grammar rules. Completely different impressions.

The difference isn’t vocabulary. It isn’t fluency. It’s modal verbs, those tiny words like can, should, must, would, might, and could, and the confidence with which we choose them.

For intermediate learners, modal verbs are one of the most underestimated tools in English. We learn them early, but we rarely learn to use them strategically. And that strategic use is the secret heart of persuasion.

Today, I want to show you how to turn modal verbs into your personal toolkit for clear, confident, persuasive English. At the bottom of this article, you’ll find a downloadable PDF → a cheat sheet and exercise set I created specifically for you so you can practise until this feels natural.

Let’s begin…

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