| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | five minutes for | 18 |
|
| 2 | 30 minutes for | 14 |
|
| 3 | ten minutes for | 9 |
|
| 4 | two minutes for | 8 |
|
| 5 | twenty minutes for | 7 |
|
| 6 | 15 minutes for | 6 |
|
| 7 | 10 minutes for | 5 |
|
| 8 | three minutes for | 5 |
|
| 9 | 40 minutes for | 5 |
|
