| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] difficult [to-vb] | 825 |
|
| 2 | is also [adj] [to-vb] | 640 |
|
| 3 | is very [adj] [to-vb] | 615 |
|
| 4 | is [adv] likely [to-vb] | 610 |
|
| 5 | is [adv] possible [to-vb] | 577 |
|
| 6 | is more [adj] [to-vb] | 546 |
|
| 7 | is [adv] easy [to-vb] | 408 |
|
| 8 | is too [adj] [to-vb] | 405 |
|
| 9 | is [adv] important [to-vb] | 395 |
|
| 10 | is [adv] necessary [to-vb] | 312 |
|
| 11 | is now [adj] [to-vb] | 269 |
|
| 12 | is quite [adj] [to-vb] | 253 |
|
| 13 | is therefore [adj] [to-vb] | 251 |
|
| 14 | is often [adj] [to-vb] | 240 |
|
| 15 | is always [adj] [to-vb] | 219 |
|
| 16 | is [adv] [adj] to have | 217 |
|
| 17 | is [adv] impossible [to-vb] | 206 |
|
| 18 | is [adv] [adj] to say | 205 |
|
| 19 | is [adv] able [to-vb] | 185 |
|
| 20 | is still [adj] [to-vb] | 174 |
|
| 21 | is [adv] [adj] to see | 168 |
|
| 22 | is [adv] [adj] to make | 160 |
|
| 23 | is most [adj] [to-vb] | 155 |
|
| 24 | is [adv] hard [to-vb] | 149 |
|
| 25 | is [adv] [adj] to find | 148 |
|
| 26 | is extremely [adj] [to-vb] | 146 |
|
| 27 | is almost [adj] [to-vb] | 140 |
|
| 28 | is only [adj] [to-vb] | 136 |
|
| 29 | is [adv] [adj] to do | 114 |
|
| 30 | is less [adj] [to-vb] | 111 |
|
