This has almost nothing to accomplish with the 3rd person, It can be let + Accusative scenario in the noun + bare infinitive. So it really works similarly for all people: allow me to run, let us operate, Allow the boy operate. Ion exchange chromatography resins may be used https://ionchromatographyinstrume22109.anchor-blog.com/20150420/how-ion-chromatography-machine-can-save-you-time-stress-and-money