| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be sent | 304 |
|
| 2 | [vb past] been sent | 302 |
|
| 3 | [vb past] [been] sent | 302 |
|
| 4 | had [be] sent | 282 |
|
| 5 | 'd [be] sent | 20 |
|
