| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] a [noun sg] | 7274 |
|
| 2 | [modal v] [be] at [noun sg] | 329 |
|
| 3 | [be] at a [noun sg] | 87 |
|
| 4 | [modal v] [be] at a | 80 |
|
| 5 | [modal v] at a [noun sg] | 7 |
|
