You didn't say which meaning of the word you want to be used. A conductor can be the person who sells and checks tickets on a train. A conductor can lead the orchestra. A conductor can be a substance that will carry electricity. There are also many other meanings. Here are a few sample sentences.
The word "looked" is a correctly used modifier in the sentence.
I think that the above sentence used in this term, is correctly used in this way.
In the sentence, It's up to you to decide, It's is used as a contraction for It is. It's used correctly here.
Yes; there are none.
No, it is not used correctly. The correct way to use it is You are most welcome.
The sentence "She quickly ran to the store to buy some groceries" contains a correctly used modifier in italic.
In the above sentence the word regarding is used correctly.
The sentence "I am going to the store, to buy some milk and bread, after work." uses commas correctly to separate two clauses in the sentence.
The undulation of the conductor's arms kept the orchestra on tempo.
Correctly is the adverb in that sentence.
He spoke sharply to his sister
its welcome, not welcomed