What Does “Be up to sth” Mean?
“Be up to sth” means to be doing something, often something secretive or mischievous. It can also mean being capable of doing something, depending on the context.
Introduction
The phrase “Be up to sth” is a common English phrasal verb with more than one meaning. Most often, it refers to someone doing something, usually something that others might not know about or might find suspicious. For example, if you say “What are you up to?” it means “What are you doing?” or “What are you planning?” Sometimes, it can also mean that someone is capable or able to do a particular task, such as “Are you up to the challenge?” Understanding the “Be up to sth meaning” helps learners use this phrase naturally in conversations and writing.
Quick Info Box
- Phrasal verb: Be up to something
- Type: Intransitive (usually)
- Level: B1 (Intermediate)
- Short meaning: Doing something (often secret or mischievous) or capable of doing something
Structure (Grammar Rules)
“Be up to sth” is usually inseparable, meaning you cannot separate “up to” from the object (something).
- Subject + be + up to + something
- Example: She is up to no good.
Because “up to” is a fixed phrase here, you cannot say “She is up something to.”
How to Use “Be up to sth”?
Use “Be up to sth” when you want to ask or say what someone is doing, especially if it seems secret or suspicious. It can also express whether someone has the ability to do something.
- To talk about activities or plans: “What are you up to this weekend?”
- To suggest mischief or secret actions: “He must be up to something.”
- To ask about ability: “Are you up to running a marathon?”
Examples
- What are you up to after school today?
- She is up to no good; I think she’s planning a surprise party.
- They were up to something but didn’t tell us.
- Are you up to fixing the car by yourself?
- He’s up to the task and will finish the project on time.
Common Mistakes
- Incorrect: What are you up for?
- Correct: What are you up to?
- Incorrect: She is up something.
- Correct: She is up to something.
- Incorrect: Are you up to do the job?
- Correct: Are you up to doing the job?
Differences / Synonyms
Similar phrases include “be doing something,” “be involved in,” and “be planning something.” However, “be up to sth” often implies secrecy or mischief, unlike the more neutral “be doing something.”
- Be doing something: Neutral, any activity.
- Be involved in: Participation, often formal or serious.
- Be planning something: Focus on intention, not action.
- Be up to something: Secretive, mischievous, or capable.
Common Collocations
- Up to no good
- Up to something
- Up to the task
- Up to speed
- Up to challenge
Related Phrasal Verbs
Here are related phrasal verbs of be up to sth:
Real-life Dialogue
Anna: Hey, what are you up to this evening?
Tom: Not much, just staying home. Why?
Anna: I thought you might be up to something fun!
Tom: Maybe! I’m up to trying a new recipe.
Practice
Fill in the blanks with the correct form of “be up to”:
- 1. What ______ you ______ this weekend?
- 2. She is definitely ______ no good.
- 3. Are you ______ the challenge of climbing the mountain?
- 4. They were ______ something secret yesterday.
FAQs
- Q: What does “be up to something” mean?
A: It means doing something, often secretly or mischievously. - Q: Can “be up to” mean ability?
A: Yes, it can mean being capable of doing something. - Q: Is “be up to” separable?
A: No, “up to” stays together in this phrase. - Q: Can I say “What are you up for?” instead?
A: No, “What are you up to?” asks what someone is doing; “up for” means willing to do something. - Q: Is “be up to no good” a common phrase?
A: Yes, it means someone is doing something bad or mischievous.
