In this excerpt from richard lovelace's "to lucasta going to the wars," which three lines use iambic trimeter?
tell me not, sweet, i am unkind
that from the nunnery
of thy chaste breast, and quiet
to war and arms i fly.
true, a new mistress now i chas
the first foe in the field;
and with a stronger faith embrace
a sword, a horse, a shield.