This lesson explains how to use the four related English forms: I, me, my, and mine. They show who performs an action (subject), who receives an action (object), and how possession is expressed (possessive adjective and possessive pronoun).
I = subject pronoun (performs the action).
Me = object pronoun (receives the action or follows a preposition).
My = possessive adjective (modifies a noun).
Mine = possessive pronoun (replaces a noun + adjective).
Table
Forms and functions: I / me / my / mine
Role
Form
Example
Subject pronoun
I
I will chair the meeting.
Object pronoun
me
The manager emailed me after the call.
Possessive adjective
my
My notes are in the shared folder.
Possessive pronoun
mine
The choice was mine.
Tip
Key rule: who does what?
Remember the basic functions:
Use I when the pronoun is the subject (before a verb): I reported the figures.
Use me when the pronoun is the object (after a verb or preposition): Call me later.
Use my before a noun to show possession: my schedule, my team.
Use mine to replace a noun phrase already understood: That seat is mine.
Short check: subject = I, object = me, modify noun = my, replace noun = mine.
Example
Examples in context
I prepared the quarterly report and I will present it on Monday.
The director asked me to join the call at 9 AM.
My calendar is open for appointments after 2 PM.
If you need a place to sit, the chair next to me is mine.
Tip
Common mistakes to avoid
Learners often misuse these forms. Watch for these universal errors:
Using 'me' as the subject: 'Me will send the file.' (incorrect) → use 'I'.
Using 'my' alone when you need 'mine': 'That pen is my.' (incorrect) → use 'mine'.
Placing 'my' after verbs that need a pronoun: 'The report is my.' (incorrect) → 'The report is mine.'
Forgetting that 'me' follows prepositions and verbs, not before verbs as a subject.
Check the role (subject/object/possession) before choosing the form.
Quiz
Choose the correct sentence:
Hint: Check which form functions as the subject of the sentence.
Correct!
Use 'I' as the subject before the verb: 'I will send...'.
Incorrect
The correct answer was: I will send the report tomorrow.
Use 'I' as the subject before the verb: 'I will send...'.
Quiz
Complete: Please give the documents to _____.
Hint: Think about which pronoun follows a preposition.
Correct!
'Me' is the object pronoun used after a preposition like 'to'.
Incorrect
The correct answer was: me
'Me' is the object pronoun used after a preposition like 'to'.
Quiz
Choose the sentence that correctly uses a possessive pronoun:
Hint: Consider which form can stand alone to show possession.
Correct!
Use 'mine' to replace 'my laptop' when the noun is already understood.
Incorrect
The correct answer was: That laptop is mine.
Use 'mine' to replace 'my laptop' when the noun is already understood.
Key Points
Vocabulary
I
pronounCEFR A1//aɪ//
Subject pronoun used when the speaker performs the action.
I will review the contract this afternoon.
Vocabulary
me
pronounCEFR A1//miː//
Object pronoun used when the speaker receives the action or follows a preposition.
The client emailed me with feedback.
Vocabulary
my
adjectiveCEFR A1//maɪ//
Possessive adjective that modifies a noun to show ownership.
My team will finish the project by Friday.
Vocabulary
mine
pronounCEFR A2//maɪn//
Possessive pronoun that replaces a noun phrase to indicate ownership.
This seat is mine; please sit somewhere else.
GrammarPoint
subject
nounCEFR B1//ˈsʌbdʒɛkt//
The part of a sentence that performs the action or that the sentence is about.
In 'I signed the document', 'I' is the subject.
GrammarPoint
object
nounCEFR B1//ˈɒbdʒɛkt//
The part of a sentence that receives the action of the verb.
In 'The CEO called me', 'me' is the object.
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