When you are writing, you can use words that show if the events have already happened, are happening now or will happen in the future. The past tense is used for things that have already happened.

NARRATOR: Free biscuits? Who will fall for that? When we talk about things that haven’t happened yet we call it the future tense. We often use the word ‘will’ in front of a verb. Looks like ...

One would use past tense to summarize one’s results Example: “In the future to further this experiment, we would expand this project and expand our sample size in order to have a more solid base for ...