Hi Divine, first of all, we don’t have “-ing” after Verb. Instead we gave a structure which is " zài + Verb". For example:

wǒ zài hē kā fēi = I am drinking coffee.

“zài” means “to be in / at”, for example:

wǒ zài Shanghai = I am in Shanghai
nǐ zài Shanghai ma? = Are you in Shanghai?

In Chinese we have many ways to make a noun plural. As for people we put “men” after subject, for example:

wǒ men = we/ us
nǐ men = you guys
tā men = they

As for objects, we don’t put anything after that, instead we need to use “lots of or many” before that, for example:

hěn duō yú = lots of fish

hěn duō góu = lots of dogs

Benny

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