How can I search to show when consecutive events occur/ specific patterns apply?

Hi All, I need the command for consecutive events which is triggered one after another out of multiple events( 3 consecutive events from 100 events) for example if we receive any hits from external IP towards our web-server as accept,accept, deny or deny, deny accept or in windows if we receive the account successfully login, account created, change password attempt etc The goal to get three or more consecutive events generated one after another out of 100 logs to identify specific pattern Can anyone please help with Splunk command to achieve the same