| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is sometimes [art] | 99 |
|
| 2 | is sometimes a | 62 |
|
| 3 | is sometimes a | 56 |
|
| 4 | is sometimes the | 37 |
|
| 5 | is sometimes the | 37 |
|
| 6 | is sometimes an | 6 |
|
