SN4 ""

No	Pattern	Freq
1	have [adv] to be	760
2	have [adv] to [be]	754
3	have yet to [be]	464
4	have yet to [be]	464
5	has [adv] to [be]	352
6	have [adv] to [be]	218
7	had [adv] to [be]	182
8	have still to [be]	109
9	have still to [be]	109
10	have also to [be]	30
11	have also to [be]	30
12	have only to [be]	16
13	have only to [be]	16
14	have now to [be]	16
15	have therefore to [be]	16
16	have now to [be]	16
17	have therefore to [be]	16
18	have then to [be]	13
19	have then to [be]	13
20	have always to [be]	13
21	have always to [be]	13
22	have somehow to [be]	7
23	have somehow to [be]	7
24	have not to [be]	6
25	have often to [be]	6
26	have [not/n't] to [be]	6
27	have often to [be]	6
28	have constantly to [be]	5
29	have constantly to [be]	5
30	've [adv] to [be]	5