| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun sg] [verb] is | 20 |
|
| 2 | [prep] a [noun sg] [to-vb] is | 15 |
|
| 3 | for a [noun sg] [verb] is | 9 |
|
| 4 | of a [noun sg] [verb] is | 5 |
|
