Which line is scanned incorrectly?

line 1
line 2
line 3
line 4
line 5

The line that is scanned incorrectly is line 1. This is because all the rest of the lines have 4 metrical feet, while the first one has two metrical feet.

The little straight line over syllables is called a macron. It is placed above stressed syllables.

The little curved line over syllables is called a breve. It is placed above unstressed syllables.

The correct way to scan line 1 would've been:

Two (macron) roads (breve) di (breve) verged (macron) in (breve) a (breve) yell (macron) ow (breve) wood (macron).

Putting these symbols over syllables is called scansion: The process of analyzing the meter of a poem.

Metrical foot: A unit of stressed/unstressed syllables that join with other feet to create poetic meter.

There are four different metrical types of feet:

iambic --> da DUM, da DUM, da DUM   (3 iambic feet)

trochaic --> DUM da DUM da DUM da    (3 trochaic feet)

dactylic --> DUM da da, DUM da da, DUM da da       (3 dactylic feet)

anapestic --> da da DUM da da DUM da da DUM       (3 anapestic feet)

Hope this information clears it up a bit!   :)

I tried to put in an image, but it wouldn't let me for some reason. So I hope you understand what the correct way to write line 1 is!

not sure maybe the subject closer to it or subject-verb agreement

a

explanation: