| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be about thirty | 78 |
|
| 2 | [be] about thirty | 78 |
|
| 3 | [is] about thirty | 28 |
|
| 4 | [was/were] about thirty | 28 |
|
| 5 | 's about thirty | 16 |
|
| 6 | was about thirty | 15 |
|
| 7 | were about thirty | 13 |
|
| 8 | [be] about thirty | 13 |
|
| 9 | be about thirty | 13 |
|
| 10 | is about thirty | 12 |
|
| 11 | [am/are] about thirty | 7 |
|
