| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a letter to [noun prp] | 223 |
|
| 2 | a letter to [noun sg] | 28 |
|
| 3 | a letter to mr | 17 |
|
| 4 | a letter to mr | 17 |
|
| 5 | a letter to [noun pl] | 15 |
|
| 6 | a letter to john | 7 |
|
| 7 | a letter to john | 7 |
|
| 8 | a letter to [n mass] | 6 |
|
| 9 | a letter to darlington | 6 |
|
| 10 | a letter to darlington | 6 |
|
| 11 | a letter to mrs | 5 |
|
| 12 | a letter to sir | 5 |
|
| 13 | a letter to mrs | 5 |
|
| 14 | a letter to sir | 5 |
|
