| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] in contact | 20 |
|
| 2 | [vb past] [been] in contact | 20 |
|
| 3 | [vb past] been in contact | 20 |
|
| 4 | [vb past] be in contact | 20 |
|
| 5 | had [be] in contact | 19 |
|
