| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] a third | 33 |
|
| 2 | be [v-ing] a third | 21 |
|
| 3 | is [verb] a third | 9 |
|
| 4 | be [verb] a third | 7 |
|
| 5 | was [verb] a third | 7 |
|
| 6 | be [vb pp] a third | 7 |
|
| 7 | be [to-vb] a third | 5 |
|
