Where to play other chords like suspension 7th, 4th?

hi frns i need sm help....i'm bored playing same major minor chords...i want to learn more chords ...eg. as i know 7th chord is played for 7th note but don't find suitable everywhere...plz some one tell me where to play other chords like suspension, 7th,4th..please take me out....

 

ohk .. first of all there is no chord like suspension .. it is suspended

now not much to say here

Code:

7th		=	1 3 5 7b	(pretty much used chord)
Maj7th		=	1 3 5 7		(Listen to gurus of peace by A. R. Rahman .. it is a AMaj7)
m7th		=	1 3b 5 7b
m(Maj7th)	=	1 3b 5 7	(Pretty Wierd and uncommon)
Sus2		=	1 2 5
Sus4		=	1 4 5
Add9		=	1 3 5 9		(Like Cadd9 is 032033)
9th		=	1 3 5 7b 9
Maj9th		=	1 3 5 7 9	(A chord used in aadat by jal)

Try Practicing These for a while