| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be last [noun] | 70 |
|
| 2 | [pron] be last night | 39 |
|
| 3 | [pers pn] be last night | 33 |
|
| 4 | it be [adj] night | 24 |
|
| 5 | it be [num ord] night | 8 |
|
| 6 | it [be] last night | 7 |
|
| 7 | it be last night | 7 |
|
| 8 | it be last night | 7 |
|
