Digram Frequencies in General English Messages
The table below gives verbal summaries of the frequencies of English language
digrams. The following letters, or abbreviations are used in the table:
H = High,
digram occurs more than 1.15% of the time.
M = Medium,
digram occurs more than 0.46% of the time (but less than High.)
L = Low,
digram occurs more than 0.12% of the time (but less than Medium)
R = Rare, digram occurs more than 0.00% of the time (but less
than Low)
Blank = Digram does not occur
| |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |
| A |
R |
L |
L |
L |
R |
R |
L |
R |
L |
R |
R |
M |
L |
H |
R |
L |
R |
M |
M |
H |
R |
L |
R |
R |
R |
R |
| B |
R |
R |
R |
|
L |
|
|
|
R |
R |
R |
L |
R |
|
L |
R |
|
R |
R |
R |
R |
R |
R |
|
L |
|
| C |
M |
R |
R |
R |
M |
R |
R |
M |
M |
R |
R |
R |
R |
R |
M |
R |
R |
L |
R |
L |
L |
|
R |
|
R |
|
| D |
L |
R |
R |
R |
M |
R |
R |
R |
M |
R |
R |
R |
R |
R |
L |
R |
R |
R |
L |
L |
L |
R |
R |
R |
R |
|
| E |
M |
L |
M |
M |
L |
L |
L |
R |
L |
R |
R |
M |
M |
H |
L |
M |
R |
H |
H |
M |
R |
L |
L |
L |
R |
R |
| F |
L |
R |
R |
R |
L |
L |
R |
R |
L |
R |
R |
R |
R |
R |
M |
R |
R |
R |
R |
L |
R |
R |
R |
|
R |
|
| G |
L |
R |
R |
R |
L |
R |
R |
R |
L |
|
R |
R |
R |
R |
R |
R |
R |
L |
R |
L |
R |
R |
R |
|
R |
|
| H |
M |
R |
R |
R |
H |
R |
R |
R |
L |
R |
|
R |
R |
R |
L |
R |
R |
R |
R |
R |
R |
R |
R |
|
R |
|
| I |
L |
R |
M |
L |
M |
L |
L |
R |
R |
|
R |
L |
L |
H |
M |
R |
R |
L |
M |
M |
|
L |
R |
R |
|
R |
| J |
R |
|
|
R |
R |
|
R |
|
|
|
|
|
|
|
R |
|
|
R |
|
|
R |
|
|
|
|
|
| K |
R |
R |
R |
|
L |
R |
R |
R |
R |
|
|
R |
R |
R |
R |
R |
|
R |
R |
R |
R |
R |
R |
|
R |
|
| L |
L |
R |
R |
L |
M |
R |
R |
L |
R |
R |
R |
M |
R |
R |
L |
R |
R |
R |
L |
L |
R |
R |
R |
|
L |
|
| M |
M |
R |
R |
R |
M |
R |
R |
R |
L |
|
|
R |
L |
R |
L |
M |
|
R |
L |
R |
R |
R |
R |
|
R |
|
| N |
L |
R |
M |
M |
M |
L |
M |
R |
L |
R |
R |
R |
R |
R |
M |
R |
R |
R |
M |
H |
R |
R |
R |
|
R |
|
| O |
L |
L |
L |
L |
R |
M |
L |
R |
R |
R |
R |
L |
M |
H |
L |
L |
R |
M |
L |
L |
M |
L |
L |
R |
R |
R |
| P |
L |
|
R |
R |
L |
R |
R |
L |
R |
R |
R |
L |
R |
R |
L |
L |
|
M |
R |
L |
L |
|
R |
|
R |
|
| Q |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
L |
|
|
|
|
|
| R |
M |
R |
L |
L |
H |
R |
R |
R |
M |
R |
R |
R |
L |
R |
M |
R |
R |
R |
M |
M |
R |
R |
R |
|
L |
R |
| S |
M |
L |
M |
R |
M |
L |
R |
L |
M |
R |
R |
R |
L |
R |
M |
L |
R |
R |
L |
H |
L |
R |
L |
|
L |
|
| T |
M |
R |
R |
R |
H |
R |
R |
H |
H |
R |
R |
R |
R |
R |
M |
R |
R |
L |
M |
L |
L |
R |
L |
|
L |
|
| U |
L |
R |
L |
R |
L |
R |
R |
R |
R |
|
R |
L |
R |
L |
R |
R |
|
L |
L |
L |
|
R |
R |
R |
|
|
| V |
R |
|
|
|
M |
|
|
|
L |
|
|
R |
R |
|
R |
|
|
|
R |
|
|
|
|
|
R |
|
| W |
L |
R |
R |
R |
L |
R |
|
L |
L |
R |
R |
R |
R |
R |
L |
R |
|
R |
R |
R |
R |
|
R |
|
R |
|
| X |
R |
R |
R |
|
R |
R |
|
R |
R |
|
R |
|
R |
|
R |
L |
|
R |
R |
R |
R |
|
R |
|
|
|
| Y |
L |
R |
R |
R |
R |
R |
R |
R |
L |
R |
R |
R |
R |
R |
L |
L |
R |
R |
L |
L |
R |
R |
R |
|
R |
R |
| Z |
R |
|
|
R |
|
|
|
|
R |
|
|
R |
|
|
|
|
|
|
|
|
|
|
|
|
|
R |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
K |
L |
M |
N |
O |
P |
Q |
R |
S |
T |
U |
V |
W |
X |
Y |
Z |