Answer:
I am in the past never in the future. I don't exist but have existed. I saw what you saw and that is what I will ever see.
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I am the kind of soda you must not drink.
I give people a huge fright, but at the end I'm sweet. I normally celebrate at night, when there's less heat. What am I?
I went into the woods and got it. I sat down to seek it. I brought it home with me because I couldnโt find it. What is it?
If itโs information you seek, come and see me. If itโs pairs of letters you need, I have consecutively three. What am I?