Indicative Verb Mood expresses and makes factual and authentic statements. For an example, ''A human is a mammal.'' It is true and a fact that a human is a mammal. Note that I leave no benefit of a doubt, but I state it matter of factly.
The Imperative Verb Mood expresses and makes a request and/or demand. Say for instance, ''Hand me that remote.'' Note that the speaker is telling you to do the action expressed, which was handing 'that' remote.
Subjunctive Verb Mood overall expresses doubts, suggestions, hypotheticals, and/or wishes. They normally use words like 'if'. For an example, ''If only I were that smart I'd enter and win that contest.'' Note that the speaker uses 'if'.
A1: Imperative because the person saying this sentence is telling us to look out the window and tell them what we see.
A2: Indicative because it's stating a fact.
A3: Subjunctive because it's making a wishful statement that proclaims *IF* they were us, they'd hike up Bridal Veil Falls.
A4: Again, subjunctive, because it's making a wishful statement. It outright says *if* as well as *wish*.
if i had a chance to change the past i would because iv made a lot of mistakes in my life and if i could fix them it would make the man i am now a lot better and i could make my family proud and i could start over and thats what a lot of people want and thats a second chance .