| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [was/were] a [noun] | 817 |
|
| 2 | [noun pl] [was/were] a [noun sg] | 772 |
|
| 3 | [noun] [was/were] a problem | 46 |
|
| 4 | [noun pl] [be] a problem | 29 |
|
| 5 | [noun pl] [was/were] [art] problem | 14 |
|
| 6 | [noun pl] [was/were] [art] problem | 14 |
|
| 7 | [noun pl] [was/were] a problem | 8 |
|
| 8 | [noun pl] [was/were] a problem | 8 |
|
