What Basic Sentence Structure Is
An English sentence is a row of slots, and the slot a word stands in is its grammar. Nothing about the word itself announces "I am the doer" — its position announces it. Move a word and you have not rephrased the sentence, you have changed what happened.
THE DOER FIRSTSubject → verb → object
The dog, then bites, then the man.
The dog bites the man.
The dog does the biting, and you know that only because it stands in front of the verb.
SAME WORDS, SWAPPEDA different event
The man, then bites, then the dog.
The man bites the dog.
Five words, not one of them a different shape. Only the positions moved — and with them, who bit whom.
Many languages label the doer with an ending on the word itself, and can then let the words move about freely. English wore those endings away centuries ago and never replaced them. Position is all that is left, which is why word order in English is not a matter of style.
TRY IT
- Question 1
"Lan every evening."
- Question 2
" bites the man." — the dog is the one doing the biting.
The three slots
SUBJECT + VERB
SV
Birds sing.
Already a whole sentence. Sleep, arrive, come and happen never take an object: She sleeps is finished as it stands.
SUBJECT + VERB + OBJECT
SVO
Mai reads a book.
The object is what the verb acts on, and it follows the verb immediately. Some verbs cannot manage without one — I like is not yet a sentence.
NO ACTION AT ALL
Sbeadjective / noun
I am tired.
Nothing is being done, and English still fills the verb slot — with be.
Whether a verb takes an object is part of what you learn along with the word; no rule predicts it. What is fixed is the order once an object is there: nothing gets in between the verb and its object. Say I like this song very much, not I like very much this song — the extra information queues at the end, behind the object.
Every English statement needs a subject and a verb — even when there is nobody to name (It is raining) and nothing happening (She is a nurse). The object is the only slot a sentence may leave empty.
TRY IT
- Question 1
"My brother every day."
- Question 2
" is raining, so take an umbrella."
- Question 3
"My father very busy today."
What can fill the subject slot
A NAME
Mai works in Đà Nẵng.
The simplest subject there is, and always capitalised.
Signal words: Mai · Nam · Ms Hoa · London
A NOUN WITH ITS WORDS
My older brother works in Đà Nẵng.
A noun can bring words with it; the whole group still fills one slot.
Signal words: my older brother · the new teacher · those books
A PRONOUN
He works in Đà Nẵng.
Once someone has been named, a pronoun stands in for the name.
Signal words: I · you · he · she · it · we · they
AN EMPTY IT
It is raining.
Nobody is doing the raining. It is there only because the slot has to be filled.
Signal words: It is raining. · It is Monday. · It is six o'clock.
The last card is the one worth staring at. English will not open a statement with the verb, so when there is no one to name, the language supplies a subject that means nothing at all. Is raining is not a shorter way of saying it; it is not a sentence.
a command — Sit down. Come in. Don't worry. Its subject is an understood you. Questions open with a verb as well (Are you ready?), but a question is not a statement, so among statements the command stands alone.
Quick check · 3 questions
Choose the words in the right order:
Nam likes coffee.
- A. likes coffee — Correct
- B. coffee likes
- C. likes coffee Nam
Answer: A. likes coffee
The order is subject, verb, object. Putting coffee in front of the verb would make the coffee the one doing the liking.
Choose the word that fills the subject slot:
I go to school by bus.
- A. I — Correct
- B. Go
- C. Me
Answer: A. I
Starting with Go leaves the sentence without a subject. Me names the same person but never takes the subject slot; the form that does is I.
Which sentence has both a subject and a verb?
My mother cooks dinner.
- A. My mother cooks dinner. — Correct
- B. Cooks dinner.
- C. My mother dinner.
Answer: A. My mother cooks dinner.
Sentence B has a verb but never says who cooks. Sentence C names a person but gives her nothing to do, so neither is a sentence yet.
