What's is less formal for "despite the fact that / in spite the fact that" in spoken language?
I never really heard anyone use these words while speaking. Are there other words to use when speak?

For example:
- You hit that dog despite the fact that you know it's a sin.

It's just so long. Is "though" a synonym?

- You hit that dog though you know it's a sin.

Question

What's is less formal for "despite the fact that / in spite the fact that" in spoken language?
I never really heard anyone use these words while speaking. Are there other words to use when speak?

For example: 
- You hit that dog despite the fact that you know it's a sin.

It's just so long. Is "though" a synonym? 
 
- You hit that dog though you know it's a sin.

Answer

You can also use although, even though..

Answer

Sorry. Things that seem long to learners are often frequently reoccurring phrases that become a single thought to the fluent. It's just a fact of life that likely happens in every language. Such expressions and idioms are atomic, single entities.
You can substitute in your own work, but be prepared to meet them and when the time is right, embrace them yourself.

Answer

you hit the dog regardless etc etc etc