| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] add [art] extra [noun sg] | 9 |
|
| 2 | [verb] add [art] extra [noun sg] | 9 |
|
| 3 | [verb] add a extra [noun sg] | 8 |
|
| 4 | [verb] add an extra [noun sg] | 8 |
|
