| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] a [noun] [prep] | 3577 |
|
| 2 | be [vb pp] [prep] a [noun sg] [prep] | 3422 |
|
| 3 | [be] [vb pp] [prep] a period [prep] | 145 |
|
| 4 | be [vb pp] [prep] a period [prep] | 145 |
|
| 5 | be [vb pp] [prep] [art] period [prep] | 72 |
|
| 6 | be [vb pp] [prep] [art] period [prep] | 72 |
|
| 7 | be [verb] [prep] a period [prep] | 57 |
|
| 8 | [be] [vb pp] [prep] a period [prep] | 54 |
|
| 9 | be [vb pp] [prep] a period [prep] | 54 |
|
| 10 | be [vb pp] [prep] a period [prep] | 54 |
|
| 11 | be [vb pp] [prep] a period [prep] | 54 |
|
| 12 | be [vb pp] [prep] a period [prep] | 54 |
|
