Why this matters
Every English sentence is built from a few basic parts: a subject (who or what we are talking about), a verb (the action or state), and often an object, a complement, or an adverbial (extra details like time and place). If you know these parts, you can build any sentence you need. If you do not, your sentences can come out broken, and listeners have to guess what you mean.
This matters in real life every day. When you write a work email, order food, or explain a problem to a doctor, people expect complete sentences. A message like 'Sent the report yesterday' leaves the reader asking: who sent it? You? Your boss? Learning the parts of a sentence is the first step to being clear in English, and it makes every later grammar topic easier.
How it works
Let us start with the two parts that every sentence must have: a subject and a verb. The subject is the person or thing the sentence is about, and it usually comes first: 'My sister cooks.' Here 'my sister' is the subject and 'cooks' is the verb. In English you almost always need to say the subject, even when it feels obvious. Many languages let you drop it; English does not. So we say 'It is raining', not just 'Is raining'.
Many verbs also need an object, the person or thing that receives the action. In 'Tom bought a car', the object is 'a car'. Without it, 'Tom bought' feels unfinished. Some verbs take two objects: a person and a thing. In 'She sent her friend a photo', 'her friend' gets the photo and 'a photo' is the thing sent. Notice the order: person first, thing second.
Some verbs do not take an object at all. Instead they take a complement, a word that describes the subject. The most common one is 'be': 'The soup is hot.' Here 'hot' does not receive an action; it tells us more about the soup. Verbs like 'be', 'become', 'seem', 'look', and 'feel' work this way: 'He became a teacher', 'You look tired'. The complement completes the meaning of the subject.
Finally, adverbials add extra details: time, place, manner, or reason. Words and phrases like 'yesterday', 'at home', 'quickly', and 'because of the rain' are adverbials. They are usually optional, and they often sit at the end of the sentence: 'We ate dinner at home last night.' You can remove them and the sentence still works: 'We ate dinner.' You cannot do that with the subject or the verb.
So the full picture is: Subject + Verb (+ Object or Complement) (+ Adverbial). When you plan a sentence, ask yourself three quick questions. Who or what is this about? That is your subject. What do they do, or what are they like? That is your verb, plus an object or complement if the verb needs one. Do I want to add when, where, or how? Those are your adverbials, and they usually go last.
Examples (14)
1. My brother fixed the printer this morning.
Subject 'my brother', verb 'fixed', object 'the printer', and a time adverbial at the end.
2. The coffee smells wonderful this morning.
'Wonderful' is a complement: it describes the coffee, so no object is needed.
3. She sent her boss the new report.
Two objects: the person 'her boss' comes before the thing 'the new report'.
4. It is very cold in this office.
English needs the subject 'it' for weather and temperature; you cannot drop it.
5. We waited at the bus stop for twenty minutes.
The verb 'waited' has no object, only place and time adverbials.
6. Did you pay the bill yesterday?
Even in a question, the parts are all there: subject 'you', verb 'pay', object 'the bill'.
7. The children seem happy at their new school.
'Seem' takes a complement, 'happy', not an object.
8. I did not bring my umbrella today.
A negative sentence still keeps subject, verb, and object in place.
9. There is a pharmacy near the station.
'There' fills the subject position when we say that something exists.
10. My grandmother tells us funny stories every weekend.
Person object 'us' first, thing object 'funny stories' second, adverbial last.
11. The train arrived ten minutes late.
'Arrive' never takes an object; the extra words are adverbials.
12. He became the manager of our team last year.
'The manager of our team' is a complement telling us what he became.
13. They cleaned the kitchen quickly after the party.
Object 'the kitchen' comes first, then the adverbials 'quickly' and 'after the party'.
14. You look really tired this evening.
'Look' plus the complement 'tired' describes the subject 'you'.
Common mistakes
The biggest mistake is dropping the subject. Learners say 'Gave the customer a refund' instead of 'I gave the customer a refund.' In many languages this is fine because the verb form shows who acted, but English verbs do not carry that information. Without a subject, the listener honestly does not know who did the action. The fix is simple: before you speak, choose your subject word first, even if it is just 'I', 'it', or 'there'.
A second common mistake is leaving out the verb, especially the verb 'be'. Learners say 'She very busy today' instead of 'She is very busy today.' It feels natural to skip 'is' because it carries little meaning, but English grammar requires it. Every sentence needs a verb, even when the real information is in the adjective. If your sentence describes someone with an adjective, check that 'am', 'is', or 'are' is there.
A third mistake is forgetting a needed object. Saying 'I really enjoy' or 'She put on the table' leaves the listener waiting. Verbs like 'enjoy', 'put', 'need', and 'want' feel empty without an object: 'I really enjoy cooking', 'She put the keys on the table.' When you learn a new verb, learn whether it needs an object, and never let the sentence end before the verb is complete.
Quick tips
- Every English sentence needs a spoken subject, even 'it' or 'there'.
- Check for a verb in every sentence; do not skip 'is', 'am', or 'are'.
- With two objects, say the person before the thing: 'give her the book'.
- After 'be', 'seem', 'look', and 'feel', use a describing word, not an object.
- Put details of time and place at the end, after the main parts.
- Before speaking, ask: who? does what? to what? when or where?