It's Been Awhile tab by Staind

Intro/Clean
eb|---------------|-------------------|---------------|-------------------|
Bb|---------------|--------1p0--------|---------------|-------------------|
Gb|---7---9--7--0-|---0--------0------|-----0---0-----|----------7--5--0--|
Db|---------------|-------------------|-------4---4---|------5------------|
Ab|--7-7------7---|-3---3p0-|-------------5-|----7---7----------|2x
Db|---------------|-------------------|---5-----------|--0----------------|

   Clean
eb|---------------|-------------3-----|---------------|-------------------|
Bb|------10-------|--------1p0--------|---------------|-------------------|
Gb|---7---9--7--0-|---0------1--------|-----0---0-----|----------7--5--0--|
Db|---------------|-------------------|-------4---4---|------5------------|
Ab|--7-7------7---|-3---33p0|-------------5-|----7---7----------|6xW/singing
Db|---------------|-------------------|---5-----------|--0----------------|

  Chorus/Heavy Distrotion
eb|---------------------------------|
Bb|---------------------------------|
Gb|-----------*5--------------------|
Db|--7----/----5-------5---------0--|
Ab|--7----/----3-------5---------0--|5x
Db|--7----/------------5---------0--|

*They use a 7 string guitar for this part,
but I use a 6 string so i play the C up higher.

Well thats all I can give you, but i am 100% sure that this tab is correct!