Do I need an apostrophe in "These trees’ roots"?
"Wow!!! These trees' roots are so long!"
In this example the speaker can see both roots and the trees themselves.
|show 5 more comments|
Yes, you need the apostrophe.
Yes, you need the apostrophe, and you need it right where it is: make sure that the apostrophe is after the "s", not before.
-s' is the possessive ending for plural nouns (e.g. trees becomes trees'), while -'s is the possessive ending for singular nouns (e.g. tree becomes tree's).
Hence, The roots of these trees becomes These trees' roots.
And The roots of this tree becomes This tree's roots.