1. The same person in different sentence roles
A personal pronoun avoids repeating a name or noun when the reference is clear. In She knows him, she names the subject: we say of her that she knows another person. Him is the object of knows: he is the person she knows.
A subject is a grammatical role, not necessarily someone actively doing something. In She is tired, she is simply in a state; use she, not her. Likewise, I like him contains no physical action being “received”. Identifying sentence roles is more reliable than looking for a physical doer or recipient.
For a simple statement, identify the central pair: who or what the statement is about, and what is said about them. Then check whether the verb has an object. Not every sentence needs one: They work can already be a complete thought.
She trusts him.
She trusts him.
She is the subject of trusts; him is the person she trusts. English uses the object form him in this role, regardless of how another language marks it.
He trusts her.
He trusts her.
The participants have exchanged roles: he is now the subject, and her is the object. You cannot simply swap him and she without changing their forms.
We are tired.
We are tired.
We is the subject even though the sentence describes a state rather than an active action.
2. Learn corresponding pairs, not two separate lists
The subject forms are I, you, he, she, it, we and they. The corresponding object forms are me, you, him, her, it, us and them. The grammatical form changes within a pair, not the person or group: we and us can refer to the same people including the speaker.
Pronoun cases in another language do not necessarily have separate English equivalents. Depending on the verb and preposition, me can express different relationships that another language marks with different forms. Choose the English form according to the English construction, and translate the meaning naturally.
In an ordinary statement, the subject often precedes the main verb and its object follows. This is a useful starting pattern, but not a universal position rule: in questions and longer sentences, identify the role first.
subject → object form: I → me; you → you; he → him; she → her; it → it; we → us; they → them
- subject / S —
- The grammatical subject: who or what the clause is about; the verb agrees with it. In The book was written, the book is the subject, although someone else does the action.
- object / O —
- Who or what an action affects: in I read a book, a book is the object.
I know them, and they know me.
I know them, and they know me.
In the first clause, I is the subject and them the object. In the second, the same participants have different roles: they and me.
We help her, and she helps us.
We help her, and she helps us.
We/us and she/her retain their participants but change form according to their roles with help and helps.
3. After a preposition: with me, for us, to them
When a personal pronoun is the complement of a preposition, use the object form. Say with him, for her, to us, from them and next to me. A preposition can contain several words, as next to does.
Do not add an English preposition just because a translation into another language seems to require one. For example, help me and call her both use a pronoun directly as the verb's object, without to.
When two people are joined by and after a preposition, the forms remain object forms. Between you and me can introduce a confidential remark or mean that something should remain private between the two people. And does not turn me into I.
Please wait for us.
Please wait for us.
After for, use us. We is a subject form, but that is not its role here.
The message is from her.
The message is from her.
Her depends on from; the earlier presence of is does not determine this pronoun's form.
Please keep this between you and me.
Please keep this between you and me.
You and me both depend on between. A natural translation conveys the request for confidentiality rather than copying every English word.
4. You and it: one form, two possible roles
You does not change form between subject and object. It also has the same form in both roles. Identical spelling does not mean identical grammatical function.
You can address one person or several; the situation determines this, not an ending on the word. For a previously mentioned singular object, English often uses it: do not transfer the grammatical gender of words such as phone or lamp from another language.
To understand the role of you or it, examine the whole construction: You need it, I need you, It works. You do not need to invent a second form; you need to understand the relationships between the words.
You can call me. I can call you too.
You can call me. I can call you too.
The first you is the subject of can call. The second is the object of call; the form has not changed.
The lamp is old. It works, and I use it every evening.
The lamp is old. It works, and I use it every evening.
Both occurrences of it refer to the lamp. The first is the subject of works; the second is the object of use.
5. In a question, the subject is not necessarily the first word
In Can she help him? and Do they know us?, an auxiliary or modal comes before the subject. This does not turn she and they into object forms. Identify the subject associated with help or know.
Do not apply “an object form follows any verb” to an entire long sentence. In I think she is ready, she is ready has its own subject she. It follows think but is not its simple pronominal object. This explains the limits of the position clue; complex subordinate clauses are not separately practised here.
Do not force familiar expressions such as It's me into I am either. It's me is a natural way to identify yourself, for example at a door. This lesson focuses on subjects, objects and prepositional phrases, not every construction after be.
Can he hear us?
Can he hear us?
He is the subject after can; us is the object of hear. The position after can does not require him.
Are they ready?
Are they ready?
They is the subject in a question about a state. There is no object in this sentence.
I think she is ready.
I think she is ready.
She is the subject of she is ready. This shows why the role matters, not simply the immediately preceding word.
6. Two participants joined by and: check each separately
In standard writing, a coordinated subject needs subject forms: He and I work here. If the same pair is an object, use object forms: They know him and me. A prepositional phrase also takes object forms: with him and me.
A useful check is to temporarily remove the other participant. Nora and I work here → I work here. This is for Nora and me → This is for me. Do not automatically put I after every and.
It is usually polite and natural to name the other person before yourself: He and I. However, I and he is not a grammatically impossible order. If an exercise checks pronoun forms rather than participant order, that version should not be rejected.
Me and him work here occurs in some informal conversational varieties of English. For neutral standard writing, choose He and I work here. This recommends the target standard and register; it does not claim that native speakers never use the informal version.
She and I travel together.
She and I travel together.
She and I together form the subject of travel. Both are subject forms.
Our friends travel with her and me.
Our friends travel with her and me.
Her and me now belong to the phrase after with, so both are object forms.
7. Your own response: keep track of the speaker and the referents
Before choosing a form, establish the reference: I is the current speaker, you is the addressee, and we is a group including the speaker. When the speaker changes, the same person may be referred to differently. Do not mechanically copy pronouns from the question.
For a third person, use pronouns established by the context. A name alone does not guarantee he or she. If the reference could be ambiguous, name the person first or clarify who is meant. They/them can also refer to one person; controlled tasks in this lesson explicitly provide the context or set of forms.
For self-checking, read your answer twice. First check the meaning: who knows whom, calls whom or goes with whom? Then check each pronoun form. In your own responses, the model gives one possible version; other natural formulations are allowed if they meet the visible requirements.
Can you help us? — Yes, I can help you.
Can you help us? — Yes, I can help you.
One person answers, so that person refers to themselves as I. The group that just said us becomes the addressee you in the response.
This is my friend Alex. He lives nearby. I often see him.
This is my friend Alex. He lives nearby. I often see him.
The speaker establishes he/him for Alex in the text. Him refers back to the person already named; its form is chosen for its role with see, not because of the name.
Common mistakes
Incorrect:Her is tired.
Correct:She is tired.
A description of a state still has a subject. Standard English requires she with is here; the absence of an active action does not make her appropriate.
Incorrect:They know we.
Correct:They know us.
The group including the speaker is the object of know. Change we to us without changing the participants or meaning.
Incorrect:Please come with I.
Correct:Please come with me.
The pronoun depends on with, so use the object form me.
Incorrect:Can him call us?
Correct:Can he call us?
Him was wrongly chosen just because it follows can. The subject of the question is he; us remains the object.
Incorrect:This is for you and I.
Correct:This is for you and me.
In standard writing, both participants depend on for. And does not cancel the object form me; removing the other participant gives for me.
Incorrect:Me and him work here.
Correct:He and I work here.
For a standard written statement, use subject forms. The original occurs in informal conversational varieties; the correction adapts it to the target register. I and he work here also has correct forms, though its order is less usual.