“I’m unable to + verb” is a polite and formal way to say that you cannot do something. It is commonly used in everyday conversations, workplaces, emails, customer service, and professional situations. Instead of simply saying “I can’t,” you can use “I’m unable to” when you want to sound more polite and respectful.
For example, if you cannot attend a meeting, you can say, “I’m unable to attend the meeting today.” If you cannot answer a call, you can say, “I’m unable to take your call right now.”
◎ Important Points
- “I’m unable to” means “I cannot.”
- It is more polite and formal than “I can’t.”
- Always use the base form of the verb after “to.”
- It is useful in offices, emails, and professional conversations.
- Do not add “ing” after “to.”
- Use it when explaining limitations politely.
- The structure remains the same with different verbs.
➤Key Concept
✅ Sentence Structure: Subject + am/is/are + unable to + base verb + object
Example:
I’m unable to join the meeting today.
Concept:
Use “unable to” when you want to politely express that you cannot do an action.
Speaking Tip:
Use “I’m unable to” in professional conversations to sound more polite and confident.
➤ Common Mistakes To Avoid
| Common Mistake | Wrong Example | Correct Example |
|---|---|---|
| Using verb + ing | I’m unable to attending the meeting. | I’m unable to attend the meeting. |
| Missing “to” | I’m unable attend today. | I’m unable to attend today. |
| Using past verb | I’m unable to attended the event. | I’m unable to attend the event. |
| Wrong helping verb | I unable to join. | I’m unable to join. |
| Double negative | I’m unable to can help you. | I’m unable to help you. |
➤ Examples
- I’m unable to attend the meeting today.
- I’m unable to answer your call right now.
- I’m unable to finish the report before noon.
- I’m unable to visit you this weekend.
- I’m unable to drive because my car is being repaired.
- I’m unable to join the online class today.
- I’m unable to carry this heavy bag alone.
- I’m unable to book the tickets at the moment.
- I’m unable to stay for the entire event.
- I’m unable to meet my friends this evening.
➤ Practice Examples
A. Fill in the Blanks (5)
- I’m unable to ________ the meeting today.
- I’m unable to ________ your call right now.
- I’m unable to ________ the project on time.
- I’m unable to ________ you at the station.
- I’m unable to ________ the tickets online.
B. Change the Incorrect Sentence to Correct One (5)
- I’m unable to attending the class.
- I’m unable attend the meeting.
- I unable to help you today.
- I’m unable to completed the task.
- I’m unable to can join the event.
C. Speak These Sentences Aloud (5)
- I’m unable to come to the office today.
- I’m unable to answer the phone right now.
- I’m unable to attend the training session.
- I’m unable to complete the work before evening.
- I’m unable to meet you this weekend.
