
Julia Z. answered 06/22/20
Native Chinese Mandarin speaker with no accent
The sentences you have collected are using the same way of "去 ", which can be translated as "to infinitive".
However, the character " 去" itself has many meanings and ways to use, similar like English word "go". Depends on the words following "go", it can mean very differently. So "to infinitive" is just one of many meanings of this character.
Here is the translation of 去:
Quote translation:
"English Definition: to go; to go to (a place); (of a time etc) last; just passed; to send; to remove; to get rid of; to reduce; to be apart from in space or time; to die (euphemism); to play (a part); (when used either before or after a verb) to go in order to do sth; (after a verb of motion indicates movement away from the speaker); (used after certain verbs to indicate detachment or separation)"