| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we have had [art] letter | 6 |
|
| 2 | we have have [art] letter | 6 |
|
| 3 | we have have a letter | 5 |
|
| 4 | we have have [art] letter | 5 |
|
| 5 | we have have a letter | 5 |
|
