[Grammar] please helps vs please help

[kwfine]

Dear teachers,

I am writing an email to my friend, Jan, who is living in Australia.
In the email, I am writing this:

"I want some special things as present to give to Annie? Please help me buy some if you see any."

I am writing to Jan, but I am not sure whether I should change "Please help me buy some if you see any" to "Please helps me buy some if you see any".

I am so confused.

Should I use please helps or please help in this case?

 

[Koronas]

"Helps" is incorrect in this sentence.

I help
You help
He/she/it helps
We help
They help

In formal English we would write: "Please help me to buy some if you see any".
However, it is perfectly OK to omit "to" from this infinitive verb in informal speech and writing.