At the same time that a massive deployment of biologically harmful radio frequency (RF) radiation devices across the mass population has occurred, we see the reduction of health care for the poor, sic...
If you think that your partner has been cheating, then take a look at their will. If a past lover is in there, then it is probable that some form of infidelity has occurred.
(imp. & p. p.) of Occur
If terrorists are already on our southern border, a national-security failure has already occurred.
I advise all people that have had an interaction with the police to obtain a copy of the police report, as you may find a very different story in there to what actually occurred.
There is no point in worrying about the effect [result], which has already occurred. It is worth paying attention to the facts (causes) upon which the effects [results] are based.