Where to Use Though and Although?

Generally, although is used in more formal writing, though not always. (See what I did there?) Though is more often used in speech and casual writing. Additionally, although usually begins a sentence, while though can come at the beginning of any clause.

Is there a difference between though and although?

Though is more common than although in general and it is much more common than although in speaking. For emphasis, we often use even with though (but not with although). Warning: When the though/although clause comes before the main clause, we usually put a comma at the end of the clause.

Where do you put though?

Yes, it's true, you can put though at the beginning, in the middle and at the end of sentences. We can use though, and although, or even though at the beginning of a subordinate clause to mark a contrast with the idea in the main clause.