TIME LINE

 

A timeline is a visual representation of a sequence of event.

HAD: In the past perfect we must use had, which is the past form of the verb to have, as an auxiliary verb.

ALREADY:  "Already" refers to an action that has occurred at a time prior to the present but not specified. It suggests that it is not necessary to repeat the action.

YET: "Yet" is used in negative and interrogative sentences, meaning (not) in the time period between the past and now, (not) up to the present moment, including this one. It is usually placed at the end of the sentence.

USE THE HAD, ALREADY AND YET IN THE TIME LINE.

• If you want to refer to something that happened in the past in a certain year, "Had" is used.

Example: By 2018 I HAD saw my sister born.

• If you want to refer to something that happened before a certain date or year, "Had already" is used.

Example: When I traveled to the Eje Cafetero, I HAD ALREADY saw my sister born.

• If you want to refer to something that did not happen in the past you use "Hadn't yet"

Example: When I saw my sister born, I HADN'T YET started to study at Unisimon.