LEGEND: Language: Verbs 1
Verbs: In the legend, you need to use the PAST tense and the PASSIVE VOICE.
Tense: You should use the past tense as you are describing how you carried out the experiment at a time in the past.
Voice: You should focus on the things you used in your experiment and what you did with them not on yourself. This type of focus requires a special structure of the verb which we call the PASSIVE VOICE.
Glossary: passive voice.