SN4 ""

No	Pattern	Freq
1	have [adv] [vb pp] how	183
2	have [adv] [vb pp] [Wh adv]	107
3	have already [vb pp] [Wh adv]	73
4	had [adv] [vb pp] [Wh adv]	64
5	have [adv] seen [Wh adv]	47
6	have [adv] [vb pp] why	47
7	've [adv] [vb pp] [Wh adv]	37
8	have never [vb pp] [Wh adv]	33
9	has [adv] [vb pp] [Wh adv]	27
10	have [adv] wondered [Wh adv]	27
11	have often [vb pp] [Wh adv]	24
12	have [adv] forgotten [Wh adv]	17
13	have just [vb pp] [Wh adv]	15
14	have [adv] explained [Wh adv]	15
15	have also [vb pp] [Wh adv]	15
16	have always [vb pp] [Wh adv]	15
17	have [adv] [vb pp] where	13
18	'd [adv] [vb pp] [Wh adv]	12
19	have [adv] understood [Wh adv]	11
20	have [adv] known [Wh adv]	10
21	have [adv] shown [Wh adv]	9
22	have [adv] noted [Wh adv]	8
23	have [adv] learned [Wh adv]	8
24	have [adv] said [Wh adv]	7
25	have ever [vb pp] [Wh adv]	6
26	have [adv] noticed [Wh adv]	6
27	have [adv] discussed [Wh adv]	6
28	have [adv] discovered [Wh adv]	6
29	have [adv] [vb pp] when	5