"may seem tedious" is correct and usable in written English.
You would typically use it to suggest that someone's task, responsibility, or activity could be perceived as tedious (boring or laborious) by that person. For example: "Organizing the data may seem tedious, but it is essential for the success of the project."
It may seem tedious to catalog at such length characteristics that are familiar to everyone.
Indeed, although sharing eight shows a week with a life partner may seem tedious, those in the trenches say they prefer it.
While the work may seem tedious, especially for an insect whose adult life as a winged butterfly spans a mere 10 days, the study of this tiny creature has far broader implications.
It may seem tedious to dwell so insistently on the mechanics of Ms. Healy's plot, but "What Once We Felt" really does not offer much else to dwell on.
The family-drama aspect of "Jack & Bobby" — the brothers' struggles with growing up, with each other, and with their loud-living, imperfect mother — fits in with the WB profile, but the historical sweep and depth provided by the scenes set in the future may seem tedious to younger viewers, and even to the slightly older ones whom the WB is trying to reach with this show.
It may seem tedious standing and stirring but the end result will be worth it.
It may seem slow and tedious at first, but soon you'll be able to complete them as fast as you can write.
While it may seem a tedious process, the end result can make or break you".
What may seem like tedious labors over technical matters can have a large impact on public employees, taxpayers and investors.
I know this line may seem rather tedious, however, it calls for some deeper questions.
It may seem like tedious reading, but scanning the cruise lines' policies could save some potential heartache when you're getting ready to book or worse yet, already at sea.
