I honestly can’t figure out what you’re asking…
As far as a “sequential effect” are you asking how would you storyboard a lingering-type moment - where (for example) 2 people see each other, there’s recognition, they trade different puzzled, “searching” looks and after a moment realize who they are and then come together? That whole sequence of the looks kinda thing? Yes, that kind of thing would be complicated because it’s a back and forth of almost the same images/angles, and the shots (when finished) will each be a decent length of time - so visually it doesn’t relay as still images.
Your example includes “say you’re WRITING…” You make a movie by figuring out (based on the script) what you want the shots to be, the sound FX, special FX. Literally draw what you see in your head - I hate to make it sound that easy when I know you’re confused, but storyboarding is a simple process, and it’s not copying someone else’s work - it’s just scribbles on paper or a digital file.
If you’re worried about copying someone’s MOVIE SHOTS then rework what you see in your head and draw THAT.
Example of what you might see on storyboards: You see a frontal head and shoulder shot of a woman looking at something, then the next storyboard is a shot of her hands holding a letter (sorry to get terribly cliched here, but you get the idea?), then the next storyboard is a wider shot from across the room - she is on her kness crying and a big arrow rounding DOWN shows you that she just fell to her knees - the shot started with her standing.
Get the idea? Draw the sequence of shots you want to see. And when you have the sequence, you can play it in your head over and over and figure out if you need to add more shots, change what you have, etc.
Does any of that make sense? Hope this helps-