Student or Learner
Which is the difference between the two?
1. I am not scared when I jumped to the river.
2. I was not scared when I jumped to the river.
I know that it is correct to use was.
But do you think it is acceptable to use am.
Do you think #1 is acceptable?
Can we consider #1 as a general truth?
#1 is incorrect. Am is present tense, jumped is past tense. Both of these tenses have to agree in the sentence.
So you can say:
I am not scared when I jump over the river.
I was not scared when I jumped over the river.
I am is the personal present form of "to be." I was is the personal past tense.
Now you'll also noticed that I changed "to" to "over". This is because while it is possible to jump to the river, it's not really a common thing. You're more likely to jump over it, or perhaps into it.
Hope that helps.