| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] the first time | 207 |
|
| 2 | be [vb pp] for [art] first time | 205 |
|
| 3 | was [vb pp] [prep] [art] first time | 63 |
|
| 4 | were [vb pp] [prep] [art] first time | 39 |
|
| 5 | be [vb pp] [prep] [art] first time | 38 |
|
| 6 | being [vb pp] [prep] [art] first time | 21 |
|
| 7 | been [vb pp] [prep] [art] first time | 20 |
|
| 8 | is [vb pp] [prep] [art] first time | 17 |
|
| 9 | be held [prep] [art] first time | 11 |
|
| 10 | be used [prep] [art] first time | 8 |
|
| 11 | are [vb pp] [prep] [art] first time | 8 |
|
| 12 | be introduced [prep] [art] first time | 6 |
|
| 13 | be published [prep] [art] first time | 6 |
|
| 14 | be seen [prep] [art] first time | 6 |
|
| 15 | be revealed [prep] [art] first time | 5 |
|
