What are the definitions of “be on”?
Learn how to use these expressions through these examples
- 1Be functioning ( of machines ).
The computer IS ON.
- 2Take place.
The show IS ON for the next three months.
- 3Take medication or drugs, especially when they affect the person badly.
He IS ON anti - depressants and has become very difficult to please.
- 4Be at the top of one's game, performing very well.
He IS really ON right now- three goals in five minutes!
What’s the most common meaning of the phrasal verb “be on”?
The most common meaning of the phrasal verb be on is to be functioning or operating, usually referring to machines or electronic devices. For example, it can mean that a computer is turned on and working, or a television is showing a program.
What are the different verb forms of “be on”?
| Root Verb | be on |
| Third Person Singular Present | is on |
| Present Participle | being on |
| Simple Past | was/were on |
| Past Participle | been on |
Example
The lights are on in the living room.
Example
The television is on in the background.
Example
The computer is being on all day.
Example
The radio was on when I entered the room.
Example
The machine has been on since this morning.
What kind of phrasal verb is “be on”?
Notes from a Native English Speaker
What is a transitive and intransitive verb? - A transitive verb always has an object after it. (Example: Sam bought a car.) - An intransitive verb never has an object.(Example: She laughed loudly.)
Intransitive verb
“be on” is an intransitive phrasal verb because it doesn't require an object to complete its meaning. It forms a complete sentence without an object.
Example
The computer is on.
Example
The show is on for the next three months.
Notes from a Native English Speaker
What is a separable and inseparable phrasal verb? - A “separable phrasal verb” can be separated with an object between the verb and particle. - An “inseparable phrasal verb” cannot be separated by an object.
Inseparable
“be on” is an inseparable phrasal verb. This means that you can’t place an object between the verb and the particle, otherwise, it changes the meaning of the phrasal verb.
Example
The computer is on.
Example
The show is on for the next three months.
What are common phrases and expressions that include the phrasal verb “be on”?
Be on time
Arrive or be ready at the expected or scheduled time.
Example
She always makes sure to be on time for her appointments.
Be on one's mind
To be constantly thinking about someone or something.
Example
The upcoming exam is on my mind; I can't stop worrying about it.
Be on the lookout
To watch carefully for someone or something.
Example
The police are on the lookout for the missing child.
Good things to know
Does “be on” have an informal or formal tone?
Be on is a neutral phrasal verb that can be used in both informal and formal contexts. It is commonly used in everyday conversations and can also be used in more formal settings, depending on the specific context.
