English Rules
The a - an rule
A
we use a before a word beginning with a consonant
a doctor
a student
An
we use an before a word beginning with a vowel sound
an engineer
an accountant
present simple
The verb be
Am
I
Is
She
He
Are
We
You
They
Other verbs
with (s)
He
She
It
without (s)
I
You
They
We
Capital letters
The starts of sentences
He is a doctor.
Names of people and places
Jane
Brazil
The pronoun
Jane and I come from Australia