You use shopping as a subject in a sentence like this:
"Shopping is my paradise!" or "Shopping costs a lot of money."
In the sentence the word shopping is the verb. This is taught in English.
The Christmas parade will end at our shopping center!
What is the subject of this sentence? She was the subject of an investigation.
I am going shopping and after am picking the kids from school.
Shopping without a list may only fulfill sporadic needs. My sporadic shopping helps me to buy in bulk.
Sentences are regarded as declarative when the subject comes before the verb. So as an an example: I am going shopping. You are going shopping at this time of night?
The rain storm did not deter me from going shopping.
you use it like this math is my favorite subject
A sentence using the word subject: My favorite subject in school was Science.
I went shopping on Monday nevertheless I did get want I wanted.
I splurged a little bit on clothes while shopping.
The shopping center was opened by a prominent member of the local community.