Can someone please tell me if these two sentences are subordinating conjunctions, I think they are:

Question

Additionally, I remember a time when the sports world was honest, and drug-free. the 2nd one is: And I bet I can still hit it across that fence in your back yard. Thanks

Answer 1

Sentences are not subordinating conjunctions.

However, one of them contains a subordinating conjunction. Check this site.

http://englishplus.com/grammar/00000377.htm

Answer 2

Thanks. So I can start my sentences with although, when, and as long as, and it would be right, right? Thanks again

Answer 3

Yes, you can begin sentences with coordinating conjunctions.

However, in formal writing, sentences should not begin with "And."