| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we have a letter | 14 |
|
| 2 | we have a letter | 14 |
|
| 3 | we have [art] letter | 14 |
|
| 4 | we have [art] letter | 12 |
|
| 5 | we had [art] letter | 11 |
|
