| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that had been | 1354 |
|
| 2 | that have been | 1225 |
|
| 3 | that has been | 1075 |
|
| 4 | that 's been | 308 |
|
| 5 | that 've been | 9 |
|
| 6 | that having been | 5 |
|
