| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] for an | 16 |
|
| 2 | which call for an | 7 |
|
| 3 | which provide for an | 7 |
|
| 4 | which called for an | 7 |
|
| 5 | which [vb -s] for an | 6 |
|
| 6 | which provided for an | 6 |
|
