Matching Pairs ConjunctionsOnline version Complete the definitions by Micaela Ramirez 1 It's more common to use although... 2 We use so... 3 We use although... 4 It's more common to use because and so... 5 We use because... ...at the beginning of a sentence. ...to contrast information. ...to give a reason. ...in the middle of a sentence. ...to talk about results or purposes.