| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] had previously [be] | 20 |
|
| 2 | [noun pl] had previously been | 20 |
|
| 3 | [noun pl] had previously [been] | 20 |
|
| 4 | [noun pl] had previously be | 20 |
|
