"ing" in English

Yesterday, I read lesson of using "ing" in English. Its author said in introduction (the importance of "ing" in English, is used on several way).
But it is so hard for me, I understand some stuff, but the remaining it was unclear.

"ing" in English

Yesterday, I read a lesson about using "ing" in English. The author said in the introduction that the important of "ing" in English is that it is used in several ways.
But it is so hard for me. I understand some stuff, but the remainder of it was unclear.

"ing" in English

Yesterday, I read a lesson of about using "ing" in English. His The author said in the introduction ( the importance of "ing" in English, is that it is used on in several ways.)
But it is so hard for me, I understood some stuff, but the remainder it was unclear.