SN4 ""

No	Pattern	Freq
1	been [v-ing] for [det] [noun sg]	90
2	been [v-ing] for some [noun]	80
3	been [v-ing] for [det] [noun pl]	64
4	been [v-ing] for [det] time	60
5	been [v-ing] for [det] time	60
6	been [v-ing] for [det] year	37
7	been [v-ing] for [det] years	37
8	been [v-ing] for several [noun]	26
9	been [v-ing] for this [noun]	21
10	been [v-ing] for many [noun]	19
11	been waiting for [det] [noun]	18
12	been running for [det] [noun]	11
13	been [v-ing] for [det] moment	7
14	been [v-ing] for [det] moment	7
15	been [v-ing] for [det] weeks	6
16	been [v-ing] for [det] minute	6
17	been [v-ing] for [det] week	6
18	been [v-ing] for [det] months	6
19	been [v-ing] for [det] month	6
20	been [v-ing] for [det] minutes	6
21	been trying for [det] [noun]	5
22	been saying for [det] [noun]	5