| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] then [vb pp] [prep] a [num ord] | 5 |
|
| 2 | be then [vb pp] [prep] a [num ord] | 5 |
|
| 3 | then [vb pp] [prep] a [num ord] [noun] | 10 |
|
| 4 | then [vb pp] [prep] a [num ord] [noun sg] | 9 |
|
