Transform Your Teaching
with AI-Powered Worksheets
With ReadTheory’s Instant Worksheet Builder, you can create engaging, grade-appropriate worksheets tailored to your students in minutes. Spark curiosity, save time, and empower critical thinking with AI-powered tools designed for teachers like you.
The Cornerstone of English Grammar: The Verb 'To Be'
Just like the cornerstone is crucial to a building's structure, 'to be' is vital in English grammar. It exists in almost every conversation, essay, or poem. The verb 'to be' is the most protean of all verbs, adorning itself in different forms such as 'is', 'am', 'are', 'was', 'were', and 'will be'.
In English, we use the verb 'to be' to denote states, characteristics, or identities. For instance, when we say, 'She is a teacher', we're using 'is' to establish identity. Likewise, 'I am happy' uses 'am' to express a state or condition, and 'You are tall' uses 'are' to describe a characteristic.
Interestingly, the verb 'to be' has deep roots in the history of the English language. Its various forms originate from Old English, and its usages have evolved over centuries. Despite these changes, its fundamental role remains the same, making it a resilient cornerstone of English grammar.
This versatile verb is an artifice that holds the English language together. So, next time you use 'is', 'am', or 'are', remember, you're using the most adaptable, historical, and essential verb in the English language.
Question 1
Which of the following is NOT a form of the verb 'to be'?
Is
Are
Am
Shall
Were
Question 2
When we say, 'You are tall', which function of the 'to be' verb are we using?
To describe a condition
To establish identity
To describe a characteristic
To denote a future tense
None of the above
Question 3
Why is the verb 'to be' considered the cornerstone of English grammar?
Because it is the most commonly used verb
Because it has a lot of different forms
Because it is used to denote states, characteristics, or identities
Because it is used in every conversation, essay, or poem
All of the above
Question 4
What is the historical significance of the verb 'to be'?
It is the oldest verb in the English language
Its usages have evolved over centuries
It was the first verb to be used in English literature
It was used by William Shakespeare
None of the above
Question 5
True or False: The verb 'to be' can also denote the future tense, as in 'will be'.
True
False
Depends on the context
Only in British English
Only in American English
or share via
Assign the ReadTheory pretest to determine students' reading levels.

Why Teachers Love
Instant Worksheet Builder?

Tailored Content for Every Student
Craft worksheets with passages and multiple-choice questions customized to your chosen topic and grade level, ensuring relevance and engagement.

Save Hours
of Prep Time
Our AI, Lexi, generates complete worksheets—passages, questions, and answers—in minutes, freeing you to focus on teaching, not planning.

Standards-Aligned Learning
Every worksheet is designed to boost reading comprehension and critical thinking, aligning seamlessly with State Standards to help your students shine.
Personalized teaching
for personalized learning
Browse worksheets created and refined by educators using Lexi—your source for inspiration and ready-to-use resources.


ReadTheory is free for Teachers to use.
Join thousands of educators using ReadTheory for free. Sign up today and start creating in just minutes!