| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [conj] an [noun] is | 8 |
|
| 2 | [prep] [subord] an [noun] is | 8 |
|
| 3 | [prep] [conj] an [noun sg] is | 8 |
|
| 4 | [prep] whether an [noun] is | 7 |
|
| 5 | [prep] whether an [noun] is | 7 |
|
