Used as a pronoun to refer to a group of people or entities previously mentioned or easily identified, indicating that those people or entities were willing or likely to do something in the past or in a hypothetical situation.
They said they would help us move the furniture tomorrow.
Used as a gender-neutral singular pronoun to refer to a person whose gender is unknown or unspecified, indicating that this person was willing or likely to do something in the past or in a hypothetical situation.
If someone called, they would leave a message.
they wouldглагол
Определения
The phrase 'they would' is not a verb itself, but rather a modal verb construction used to indicate a hypothetical action, habitual action in the past, or polite request involving a third person plural subject.
They would travel to the mountains every summer when they were children.