The usage of some English words About: (he, she) them When does Shenma use "they"? When does Shenma use "them"? About doing, participating When does Shenma use "play"? When does Shenma use "playing" and "to play"? Another is when to add "s" after a word related to a category, such as "vegetable" and when to add "s" after it? May I have a look at your new watch

The usage of some English words About: (he, she) them When does Shenma use "they"? When does Shenma use "them"? About doing, participating When does Shenma use "play"? When does Shenma use "playing" and "to play"? Another is when to add "s" after a word related to a category, such as "vegetable" and when to add "s" after it? May I have a look at your new watch

1. "They" as the subject, put in front of the verb, when expressing "they do XX things", use "they", for example: they went to school, they went to school