Picking pattern for C:
E|---------------0--------------|
B|---------1---------1-------1--|
G|-----0-----------------0------|
D|------------------------------|
A|-3----------3-----------------|
E|------------------------------|

Picking pattern for Am:
E|---------------0--------------|
B|---------1---------1-------1--|
G|-----3-----------------3------|
D|------------------------------|
A|-0----------0-----------------|
E|------------------------------|

...other Chords like the pattern C and Am. Let´s start:

[Intro]
C Am Dm E
C Am Dm E Am

[Chorus]
C                                   Am
We are the slave descendants of the African race
Dm                E
African race, the African race
C                                   Am
We are the slave descendants of the African race
Dm             E   Am
Where proud is no disgrace

[Chorus]
C                    Am
Our forefathers were taken away,
Dm                E
taken away, taken away
C                            Am
They were bound in ships and shackled all the way
Dm                       E      Am
Like baggage and brought to the west

[Verse]
Dm                     Am
They swapped my brother now,
E               Am
also, my sister too
Dm             Am
For a drink of wine,
E                         Am
so they could drink and be merry
E                         Am
So they could drink and be merry


[Verse]
Dm           Am
I speak Amharic,
E                  Am
my sister speaks Swahili
Dm                   Am
They put us together now,
E                         Am
that's why we can't understand
E                         Am
That's why we can't understand

[Chorus]
C                                   Am
We are the slave descendants of the African race
Dm                E
African race, the African race
C                                   Am
We are the slave descendants of the African race
Dm             E   Am
Where proud is no disgrace
Dm             E   Am
Where proud of our African Race
Dm             E   Am
Where proud is no disgrace
Dm             E   Am
Where proud of our African Race
Dm             E   Am
Where proud of our African Race



Here is finally the bassline tab:
G|-------------------------------------------------------------|
D|-------------------------------------------------------------|
A|-------7(o)--------7-7-7---5-5----------------5---5----------|
E|--5-5-------5-5-5---------------8-5(1/2| o)--8---8---8--5--8--|