The phrase "are perceived to exist" is correct and usable in written English.
It can be used when discussing beliefs, opinions, or interpretations regarding the existence of something, often in a philosophical or theoretical context.
Example: "In some cultures, certain spirits are perceived to exist, influencing the beliefs and practices of the community."
Alternatives: "are thought to exist" or "are believed to exist".
No competing interests are perceived to exist for any of the authors listed on this manuscript.
Health impacts and stressors are perceived to exist in communities with UNGDO (Bamberger and Oswald 2012; Ferrar et al. 2013a).
The key problem here is that the CPRD may be presented as a benign, bureaucratic process but the inherent contradictions that are perceived to exist with centrally held values of information governance and consent remains a barrier to implementation.
Firstly, 'external' barriers are perceived to exist such as lack of finances, or an actual lack of available services; and secondly, 'internal' barriers were identified such as fear of loss of independence, or a 'stoic' attitude to life, and/or for some, the difficulty of accepting their changed health status.
Norget also considers the intimate relationship that is perceived to exist between the living and the dead in Oaxacan popular culture.
Launched in 1995, the TI index ranks countries according to how much corruption is perceived to exist among politicians and public officials.
Launched in 1995, the TI index ranks countries based on how much corruption is perceived to exist among politicians and public officials.
All of Amsterdam's scents were perceived to exist against a background aroma of the canals – a subtle tone of slight decay and mould, a savoury smell akin to that of a coat bought at a jumble sale or a plastic bag containing a two-day-old used swimsuit and towel.
Some of this increased consumer interest undoubtedly comes from some consumers' desire to buy into the luxury lifestyle that is perceived to exist in the upper echelons of the wine business.
But none of these advances has replaced the "Aha" moment of insight that arises from a human being's engagement with a biological phenomenon that is thorny or one that had not even been perceived to exist.
India was ranked 88 out of 159 countries in 2005, according to the degree to which corruption is perceived to exist among public officials and politicians.
