[pacerier]

in casual speech, is かれら more often used then かれたち?

and is it true that besides けど we have けれども, けれど, けども. do they all mean the same thing, and which should i be using (or are all fine)


also does this 2 sentences mean the same thing:
ゴルフができますか
ゴルフをすることができますか