| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [vb pp] at [adj] time | 130 |
|
| 2 | could be [vb pp] at [adj] [noun] | 55 |
|
| 3 | could be [vb pp] at [adj] [noun sg] | 42 |
|
| 4 | could be [vb pp] [prep] [adj] time | 21 |
|
| 5 | could be [vb pp] at [adj] time | 20 |
|
| 6 | could be [verb] at [adj] time | 20 |
|
| 7 | could [be] [vb pp] at [adj] time | 19 |
|
| 8 | could be [vb pp] at [adj] time | 19 |
|
| 9 | could [be] [vb pp] at [adj] time | 19 |
|
