In order to state the concept of AGO, or how much time has passed since you did something, such as "I went to Spain 5 years ago " one uses the verb HACER, which means to do or to make. When discussing duration or passage of time passage HACER suggests marking of time. The formula to use is: Hace + length of time+ que + preterit tense verb. For example, Hace + 5 anos + que + fui a Espana literally means "It marks 5 years that I went to Spain", in other words " I went to Spain 5 years ago". The use of the past tense is very important in that it lets the listener know that the action performed is finished. Notice the examples and how they translate to English: Hace una semana que Felipe se enfermó. = Felipe became ill 1 week ago. Hace tres anos que estudié el espanol.= I studied Spanish 3 years ago. In the exercise that follows, use the prompts write a sentence expressing how long ago the action took place.