at any given hour, particularly a time that is late
used for referring to a frequent change from something to another
nearly all the time
断続的に
私の家のインターネット接続は断続的に機能し、時折中断を引き起こします。
used for saying that something can only happen on very rare occasions
used for referring to a very special opportunity that most likely will not be offered more than once to someone
in a single action, without delay or hesitation
in a manner that is consistent
on multiple occasions
used to describe something that happens at fixed intervals or follows a consistent pattern without fail