some word could follow by gerund or infinitive

[Hatem]

Hello everyone
I am a Arabic speaker. I am a new member here. I have surfed this forum. I found it very impressive. Thus, I have decided to be member here. I hope you accept me.

Some word could follow by gerund or infinitive. for example: "forget". However, It take different meaning.
My question is what different between the following sentences:
he forget to read.
He forget reading.

Thank you