| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] for long periods | 29 |
|
| 2 | [adv prt] for [adj] periods | 16 |
|
| 3 | [adv prt] for long [noun] | 15 |
|
| 4 | [adv prt] for long [noun pl] | 14 |
|
| 5 | [adv prt] for [adj] periods | 13 |
|
| 6 | [adv prt] [prep] long periods | 9 |
|
| 7 | [adv prt] for long periods | 9 |
|
| 8 | [adv prt] for long period | 7 |
|
