| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a [noun] | 32653 |
|
| 2 | be [vb pp] [prep] [art] time | 666 |
|
| 3 | be [verb] [prep] a time | 171 |
|
| 4 | [be] [vb pp] [prep] a time | 141 |
|
