Often, a writer will be afraid of past-tense - and instead "force" the present tense, which leads to non-conversational scripts. This is because writers have been told to not have passive writing .... but passive writing is DIFFERENT than using past-tense.
For example....
Fact: The mayor called her mom to talk about work.
Forcing the present tense for a script: "The mayor, calling her mom, to talk about work." Would you say that to a friend? No. You would say, "The mayor called her mom to talk about work." Many writers see the PAST TENSE "called" and think that's "bad." It's not bad - it's conversational. Write how you talk! What's worse is that in most cases, the tense switches with the rest of the story: "The mayor, calling her mom, to talk about work. She said she had a tough day." So...the script goes from forcing the present tense "calling" to then using the past tense "said." Ack!
Fact: Firefighters put out the dumpster fire overnight.
Forcing the present tense: "Firefighters, putting out a dumpster fire overnight..." No! You'll hear people doing this - even on network news - but it is not strong writing that connects with the viewer. It comes across as someone pretending to be a news person, like in an SNL skit. "Firefighters PUT the dumpster fire out overnight." Both conversational and active!
Again, passive does not equal past-tense.
Passive is when you have the subject of the sentence receiving the action instead of doing the action.
For example:
PASSIVE WRITING: The man was shot by the robber.
ACTIVE WRITING: The robber shot the man.
Dead giveaway: the word "by." If you have "by" in your sentence, chances are good you can rearrange the sentence to be active.
More examples:
PASSIVE WRITING: The mayor's mom was called by the mayor to talk about work. (Wordy, eh?)
ACTIVE WRITING: The mayor called her mom to talk about work.
PASSIVE WRITING: The dumpster fire was put out by the firefighters. (Some writers see "was" and think, "Oh no! Past tense! Change it to "putting"!) NO!
ACTIVE WRITING: Firefighters put out the dumpster fire.