The phrase "appear to merge" is correct and usable in written English.
It can be used when describing a situation where two or more things seem to come together or combine in some way.
Example: "As the two companies collaborated, their visions began to appear to merge into a single, cohesive strategy."
Alternatives: "seem to combine" or "look like they are blending".
Sharing a summer cottage, the nurse talks, the actress listens, and their personalities appear to merge.
There is no football played on the dusty pitch these days, only tents pitched so closely together that the white peaked roofs appear to merge into one: a vast meringue whose walls rise from the edges of the concrete stands.
Mr. Turrell's work, like his larger light installations, involves color represented in ethereal, geometrically abstract form; its two curved triangles appear to merge with each other and the space around them.
These differences are most apparent in the Fourier transforms, in which the second neighbor features appear to merge together as chloride concentration increases.
The slow anomalies appear to merge with those immediately beneath the Society hotspot (and Tahiti island) at depths shallower than 100 km.
As I approach the dunes, perspective tricks my mind, and the backlit figures of both species appear to merge in the midday sun.
However plagiarism is a sensitive subject for Archer, 74, whose CV has often appeared to merge fact with fiction.
The many images in which she appears to merge into walls or is caught in blurry motion also suggest an urge to dematerialize into pure spirit.
Witnesses said they saw several funnel clouds descending from the darkening sky, then they appeared to merge into one twister that entered the town from the southwest.
"Z-Wave," her second architectural proposal, depicts a twisting, three-story-high sculptural form in fiberglass that appears to merge with the ramp's handrails.
The quick end to the session and the inconclusive testimony of Mr. Sheik, the chief interrogator in the aftermath of the Dujail plot, appeared to merge with the strategy of Mr. Hussein's lawyers.
