Iambic hexameter's fundamental pattern is: * / | * / | * / | * / | * / | * /

Sometimes poets of the English Renaissance experimented with iambic hexameters, or Alexandrines (as the French called them), in an effort to dignify their language with a more classical line. Usually they gave it up for the pentameter, since the English hexameter is somewhat unwieldy, and tends to split into hemistiches separated by a caesura.

Here is the first poem in Philip Sydney's sonnet sequence, Astrophel and Stella (with trochees in the first position in three of your of the lines, so only the second is diagrammed):

Loving in truth, and fain in verse my love to show,

  *     /   |   *     /  |    *       /    |   *      /  | *    *  | *      /
That she, dear she, might take some pleasure of my pain,
Pleasure might cause her read, reading might make her know,
Knowledge might pity win, and pity grace obtain