In The Importance Of Being Earnest, how is humour enhanced through comic timing and patterns in Act 3?

Act Three of any comedy with a three act structure is
about tying up all the complications that have been introduced in Act One and developed
in Act Two.  The Importance of Being Earnest has an interesting
comic structure, as it fits the criteria of a few comic styles: 
Farce, Comedy of Manners, and
Comedy in the classic sense (which involves romantic
complications and ends in at least one marriage).

The
patterns that you can look for in Act Three of Earnest
are:

• The classical
  Comic ending in preparation for a wedding.  Though there
  have been obstacles, both young couples are resolved towards marriage by the end of the
  play.


• The resolving of the farcical patterns of identity
  in the play.  Who is Earnest?  Is anyone named Earnest?  And what about lineage?  All of
  the questions of identity, a common confusion in a Farce,
  are resolved.


• And everything is played out through great
  conversational wit and banter, a hallmark of the Comedy of
  Manners.

It is the wit and
banter that relies heavily on comic timing.  But, because this is a script that actors
must interpret, you won't find "timing" in the play itself.  To observe and appreciate
the effect of the comic timing, you must see the play as it was meant to be experienced,
performed live by actors.