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The phrase "are sometimes present as" is correct and usable in written English.
It can be used when describing the occasional existence or manifestation of something in a particular form or state.
Example: "In certain ecosystems, species are sometimes present as both adults and larvae, showcasing their diverse life stages."
Alternatives: "may occasionally appear as" or "can sometimes exist as".
Exact(1)
However, during evolution, organs and structures often change form and function and are sometimes present as derived or even rudimentary structures.
Similar(59)
Before starting to shoot, Mr. Guggenheim had long conversations with the guitarists, easing them into the project and gathering audio recordings that were used as voice-overs; the reminiscences are sometimes presented as animations.
They are sometimes presented as fiction, but others are in the form of essays or philosophical books.
Negatively, wine is personified as a mocker and beer a brawler, and drinking a cup of strong wine to the dregs and getting drunk are sometimes presented as a symbol of God's judgment and wrath.
Counterarguments are sometimes presented as limitations.
These constructs are sometimes presented as a ratio or differential, although we chose to analyse them separately in this study.
Keys are hierarchical arrangements intended to aid identification or information retrieval, and are sometimes presented as a branching logical structure, i.e. a tree.
The quasi-stable synchrony patterns observed in visual, auditory, and somatic cortices (Barrie et al. 1996; Ohl et al. 2001; Freeman 2005) are sometimes presented as evidence of discrete processing of information in the brain.
Recipes promoted by television chefs are sometimes presented as being healthy: both NHS Choices 19 and Heart UK 20 feature exemplar "healthy recipes" associated with named television chefs, and some hospital trusts have taken advice from television chefs when formulating supposedly healthy hospital meals.
Biodegradable and compostable plastic materials are sometimes presented as a solution to the environmental problem of plastic carrier bags.
Mignardises are tiny, bite sized desserts like cookies, candies, or tarts that are sometimes presented at the end of a meal as a final small treat.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com