| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] a [noun sg] | 7274 |
|
| 2 | [modal v] [be] [vb pp] a | 886 |
|
| 3 | [be] [vb pp] a [noun sg] | 839 |
|
| 4 | [modal v] [be] [vb pp] [noun sg] | 675 |
|
