| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] to the secretary of | 121 |
|
| 2 | letter to the [noun] of | 70 |
|
| 3 | letter to the [noun sg] of | 56 |
|
| 4 | letter [prep] the secretary of | 11 |
|
| 5 | letter [prep] the secretary of | 11 |
|
| 6 | letter to the secretary [prep] | 8 |
|
| 7 | letter to the secretary [prep] | 8 |
|
| 8 | letter to the secretary of | 7 |
|
| 9 | letter to the secretary of | 7 |
|
| 10 | letter to [art] secretary of | 7 |
|
| 11 | letter to [art] secretary of | 7 |
|
| 12 | letter to the secretary of | 7 |
|
| 13 | letter to the secretary of | 7 |
|
