| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should have be a [noun sg] | 16 |
|
| 2 | it should have be a [noun sg] | 16 |
|
| 3 | it should [verb] been a [noun sg] | 16 |
|
| 4 | it should [vb infin] be a [noun sg] | 16 |
|
| 5 | it should [verb] be a [noun sg] | 16 |
|
