some people have achieved extraordinary successes,although they don't have high IQs.
although
Although he hasn't agreed with the idea, Al thinks he does.
Yeah, sure you can start a sentence with although. For example: Although I new I couldn't afford to make the monthly payments on the car, I bought it anyway.
I like dogs, although I think they smell bad
Although I did not know much about how to perfect cantering on a horse, the teacher still let me be in the advance group.
Yes you can you can use it like although many people...... so yes you can if that answers your question
Yes, it is a fragment, it's not a sentence. It could be a sentence without the word although. "I finished." is a sentence. Using the word "although" needs a sentence that the word is referring to either in front of it or after it. Although I finished, I was not happy with the work. I'm still hungry, although I finished my lunch.
Yes, you can start a sentence with "although." For example: "Although it was raining, we decided to go for a walk."
Although the bible says the meek will inherit the earth the meek do not make strong leaders.
They were happy although they were poor.
No. They both connect opposing clauses, making an although/but combo into a double negative. You might be able to, but it doesn't make as much sense. It was crude, but refined, although it had an air of vulgarity to it...
Although one of the ran through the rainstorm and the other walked, it was hard to prove which one was wetter.