With or without preposition are these sentences correct?

[Raju0]

1.He listens to classical music every night.
2.He listens classical music every night.
In the first, the sentence used the preposition "to" and in the second, no preposition is used.
Are these sentences correct? Do these sentences mean the same? or is any mistake in these sentences with or without preposition?

 

[Matthew Wai]

'Listen' is intransitive, so I consider it incorrect to omit the preposition.

 

[bubbha]

1. is correct.
2. is wrong.

In fact, saying "listen music" is a very common mistake made by non-native speakers.

 

[Raju0]

'Listen' is intransitive, so I consider it incorrect to omit the preposition.

1. If they were now listening, I should be informing them of this circumstance.
2. You must speak in this way, whether they listen or not.
3. One time he listens, and another time he does not.
4. If such a person as you speak, of course he will listen.

In these sentences why "to" is not used?

 

[Matthew Wai]

Because there is no object.

 

[Raju0]

Because there is no object.

If an object is not mentioned, then is it to be understood by context and there must be the object in the sentence right?

 

[Tdol]

In these sentences why "to" is not used?

Because we don't specify what they are listening to.

 

[GoesStation]

In these sentences why isn't "to" [strike]is not[/strike] used?

Note the correct way to form a question. A more common word order would be ​Why isn't "to" used in these sentences?