| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] announce the [noun] | 143 |
|
| 2 | [verb] announce the [noun sg] | 131 |
|
| 3 | [verb] [verb] the introduction | 47 |
|
| 4 | [verb] announce [art] introduction | 5 |
|
| 5 | [verb] announce the introduction | 5 |
|
| 6 | [verb] announce the introduction | 5 |
|
| 7 | [verb] announce [art] introduction | 5 |
|
