Grammar, Usage / "to+VERB-ing" confusion. Few doubts in grammar. [7]

I have a few doubts. Please guide me with good explanation.

1. Help us for getting it. AND Help us to get it.

I guess 2nd one is a correct use.

I want to know the basic difference between the use of "TO+VERB" and "FOR+VERB-ing".

2. I have a confusion for the use of "To+VERB-ing"

Eg. I look forward to receive it.
I look forward to receiving it.

When and how should we use "to+VERB-ing".

Kindly help me.
Thanks

Grammar, Usage / "Win in the fierce competition..." - Is this a correct statement grammatically? [6]

Hi,

I just created one line "Win in the fierce competition with comprehensive solutions"

Please let me know whether this is grammatically right or wrong soon.

Thanks