please explain the meaning of this pattern:" the duty he owed his grace,urged him to tell that which else no worldly good should draw from him."two gentleman of verona shakesoeara (smplified)
What do you mean by 'this pattern?'
To paraphrase, "his loyalty to the Duke prompted him to tell, where no bribe or reward could have gotten it from him."
If you mean the metrical pattern, the first section seems to require ellision of the two syllables of 'duty' into one, in which case you have three clean iambs with "the DUTY he OWED his GRACE," after which it gets a bit messy until the end when the iambs take over again with 'which ELSE no WORLDly GOOD should DRAW from HIM."