conspire

verb
1
to secretly plan with other people to do something illegal or harmful
توطئه کردن, دسیسه چیدن, تبانی کردن
2
to seem to work together to make something bad happen
دسیسه کردن, تبانی کردن, توطئه کردن, همدستی کردن, هم‌نقشه شدن
Circumstances had conspired against them.
Everything conspired to make her life a misery.