| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was a [noun sg] on | 567 |
|
| 2 | [was/were] a [noun sg] on | 494 |
|
| 3 | [was/were] an [noun sg] on | 95 |
|
| 4 | [was/were] a knock on | 63 |
|
| 5 | were a [noun sg] on | 22 |
|
| 6 | [was/were] a attack on | 16 |
|
| 7 | [was/were] a improvement on | 12 |
|
| 8 | [was/were] a man on | 11 |
|
| 9 | [was/were] a expert on | 11 |
|
| 10 | [was/were] a programme on | 10 |
|
| 11 | [was/were] a tap on | 9 |
|
| 12 | [was/were] a authority on | 9 |
|
| 13 | [was/were] a notice on | 5 |
|
| 14 | [was/were] a emphasis on | 5 |
|
| 15 | [was/were] a bit on | 5 |
|
| 16 | [was/were] a question on | 5 |
|
| 17 | [was/were] a guest on | 5 |
|
| 18 | [was/were] a number on | 5 |
|
