| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a long letter | 13 |
|
| 2 | write a long letter | 12 |
|
| 3 | [vb past] a long letter | 10 |
|
| 4 | [prep] a long letter | 9 |
|
| 5 | wrote a long letter | 9 |
|
| 6 | [prep] a long letter | 9 |
|
| 7 | a long letter [prep] | 21 |
|
| 8 | a long letter [prep] | 21 |
|
| 9 | a long letter to | 14 |
|
| 10 | a long letter to | 14 |
|
