| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | one must remember | 27 |
|
| 2 | one must look | 23 |
|
| 3 | one must have | 19 |
|
| 4 | one must ask | 18 |
|
| 5 | one must consider | 13 |
|
| 6 | one must assume | 9 |
|
| 7 | one must distinguish | 8 |
|
| 8 | one must understand | 8 |
|
| 9 | one must add | 7 |
|
| 10 | one must say | 7 |
|
| 11 | one must go | 7 |
|
| 12 | one must know | 7 |
|
| 13 | one must recognise | 6 |
|
| 14 | one must wait | 6 |
|
| 15 | one must try | 6 |
|
| 16 | one must bear | 6 |
|
| 17 | one must use | 5 |
|
| 18 | one must conclude | 5 |
|
| 19 | one must avoid | 5 |
|
| 20 | one must take | 5 |
|
