SN4 ""

No	Pattern	Freq
1	have been [vb pp] for [det] [noun]	250
2	have be [vb pp] for [det] [noun]	250
3	have be [vb pp] for [det] [noun sg]	136
4	have be [vb pp] for [det] [noun pl]	110
5	have be [vb pp] for some [noun]	90
6	has be [vb pp] for [det] [noun]	90
7	have be [vb pp] for [det] year	73
8	had be [vb pp] for [det] [noun]	72
9	have be [vb pp] for [det] years	70
10	have be [vb pp] for [det] [noun]	67
11	have be [vb pp] for many [noun]	60
12	have be [vb pp] for [det] time	59
13	have be [vb pp] for [det] time	59
14	have be [vb pp] for this [noun]	38
15	have be known for [det] [noun]	31
16	have be used for [det] [noun]	21
17	have be [vb pp] for several [noun]	17
18	have be [vb pp] for [det] reason	15
19	have be [vb pp] for [det] reason	14
20	have be [vb pp] for [det] purpose	10
21	have be made for [det] [noun]	9
22	have be [vb pp] for [det] purpose	9
23	have be [vb pp] for [det] [noun]	8
24	have be recognised for [det] [noun]	8
25	have be established for [det] [noun]	8
26	have be [vb pp] for [det] week	7
27	have be [vb pp] for that [noun]	7
28	have be [vb pp] for any [noun]	6
29	have be [vb pp] for another [noun]	6
30	have be [vb pp] for each [noun]	6