| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] not a valid [noun sg] [noun sg] | 7 |
|
| 2 | [be] not a valid [noun sg] [noun sg] | 7 |
|
| 3 | is not a valid [noun sg] [noun sg] | 7 |
|
| 4 | be not a valid [noun sg] [noun sg] | 7 |
|
