по идее(Anglophile); как будто бы(Rust71); казалось бы(Stas-Soleil); якобы(After the evacuation announcement, warning sirens sounded in Donetsk and other cities in the two Moscow-backed statelets, supposedly due to an upcoming Ukrainian military assault on the region.theguardian.com • On Thursday morning some pro-Russian Twitter accounts posted photographs of a damaged kindergarten, supposedly inside separatist territory and hit by Ukrainian forces.); возможно; предположительно; вроде бы(частица, выражающая сомнение, неуверенность или смягчающая категоричность тона Leonid Dzhepko); предположительно(Mousehole: Here, in 1777, died Dolly Pentreath, supposedly the last person to speak the ancient Cornish language as her native tongue. (AA Illustrated Guide To Britain)ART Vancouver)
как считается(Mousehole: Here, in 1777, died Dolly Pentreath, supposedly the last person to speak the ancient Cornish language as her native tongue. (AA Illustrated Guide To Britain)ART Vancouver); как предполагается(One of the earlier and most bizarre deaths supposedly related to UFOs is the 1956 case of Air Force Sergeant Jonathan Lovette. (mysteriousuniverse.org)ART Vancouver)