1. They elected the girl captain of the team.

1-2. They elected the girl the captain of the team.

(Which one is correct? Do we have to use 'the'?)

2. Is the opposite of 'guilty' 'innocent'? What about 'unguilty' or 'inguilty'?

3. Is 'barber' sometimes called 'hairdresser'?

*He had the hairdresser cut his hair.
(In this sentence, does 'hairdresser' mean'barber'?)

4. Everybody calls him a liar.
Everyone calls him a liar.
All call him a liar.
(Are all grammatical?)

5. I found math interesting.
I found math to be interesting.
I found that math is interesting.
(Are all grammatical?)

6. He beheld the boy running in the mountain. (Is this OK?)

1. They elected the girl captain of the team.

1-2. They elected the girl the captain of the team.

(Which one is correct? Do we have to use 'the'?)
Both are fine, but to me 1-2 is clearer: The girl was elected captain of the team.

2. Is the opposite of 'guilty' 'innocent'? What about 'unguilty' or 'inguilty'?
The correct word is "innocent." There are no such words as the others.

3. Is 'barber' sometimes called 'hairdresser'?

*He had the hairdresser cut his hair.
(In this sentence, does 'hairdresser' mean'barber'?)
Barbers are for men; hairdressers are mainly for women although they also cut men's hair at times.

4. Everybody calls him a liar.
Everyone calls him a liar.
All call him a liar.
(Are all grammatical?)
All three are grammatical, but the first two are most commonly used.

5. I found math interesting.
I found math to be interesting.
I found that math is interesting.
(Are all grammatical?)
All are grammatical, yes.

6. He beheld the boy running in the mountain. (Is this OK?)
It's almost OK. This is better: He saw the boy running up the mountain. (or on the mountain)

1. Both versions are grammatically correct, but they convey slightly different meanings.

- "They elected the girl captain of the team" means that they elected the girl as one of the team's captains.
- "They elected the girl the captain of the team" means that they elected the girl as the sole captain of the team.

2. Yes, the opposite of "guilty" is "innocent." "Unguilty" and "inguilty" are not commonly used opposites of "guilty."

3. No, a barber and a hairdresser are not the same thing. A barber typically specializes in cutting men's hair and providing grooming services like shaving and beard trims, while a hairdresser generally works with both men and women, offering various hair services such as cutting, styling, and coloring.

4. Yes, all three sentences are grammatically correct and convey the same meaning. The choice between "everybody," "everyone," or "all" depends on personal preference or the desired emphasis.

5. Yes, all three sentences are grammatically correct and convey the same meaning. They express that the speaker found math interesting.

6. The sentence "He beheld the boy running in the mountain" is not grammatically correct. A more appropriate phrasing might be "He saw the boy running in the mountain" or "He witnessed the boy running in the mountain."

1. Both sentences are grammatically correct, but they have slightly different meanings. "They elected the girl captain of the team" means that they elected the girl to be the captain of the team. "They elected the girl the captain of the team" means that they elected the girl specifically as the captain of the team. Using "the" before "captain" emphasizes that she is being elected to the specific role of captain.

2. Yes, the opposite of "guilty" is "innocent". "Unguilty" and "inguilty" are not commonly used or recognized as opposites of "guilty".

3. Yes, the term "barber" can sometimes be used interchangeably with "hairdresser". They both refer to professionals who cut and style hair. In the sentence, "He had the hairdresser cut his hair", "hairdresser" means the person who cut his hair, which can be understood as analogous to a barber.

4. All three sentences are grammatically correct and have the same meaning. "Everybody calls him a liar", "Everyone calls him a liar", and "All call him a liar" all convey the idea that every person refers to him as a liar.

5. All three sentences are grammatically correct and have the same meaning. "I found math interesting", "I found math to be interesting", and "I found that math is interesting" express the sentiment that the speaker found math to be interesting.

6. The sentence "He beheld the boy running in the mountain" is not grammatically correct. The phrase "in the mountain" is incorrect because mountains are typically viewed from a distance rather than inside. A more grammatically correct sentence would be "He beheld the boy running on the mountain".