The phrase "strangely I thought" is correct and usable in written English
It can be used when expressing a surprising or unexpected thought or realization.
Example: "Strangely I thought that the meeting would be boring, but it turned out to be quite engaging."
Alternatives: "Oddly I considered" or "Surprisingly I believed"
I think they knew that Frédéric would be doing his 'thing', and I explained to them that, strangely, I thought it was important for the audience to see that.
When I encouraged him to tell me his story in his own way, he began — rather strangely, I thought — by telling me how, a few months before the accident, he had had a sudden "compulsion" to sell his house in Sag Harbor, which he loved and in which he and his family had lived for five years.
Strangely, I think Elvis is American".
Strangely, I think that the SAT essay is a good writing exercise.
What I'm about to say isn't going to surprise you: 2017 has been filled with incredible games, and while, strangely, I think the first few months of the year were a little stronger than the normally dominant fall, one thing that's been consistent throughout the year is that many of these games aren't just great, they're long.
Krivokapic seemed strangely immune, I thought, to the rampant local strain of political paranoia.
"It's an authentic, heavy-duty thing," said Barrie Mandel, the director of sales for Corcoran Group Marketing, pointing out the black fixtures in the powder room tiled in dark purple (strangely cool, I thought), the thick slab of a wood dining table, and the quirky glass chandelier ("bought on eBay," Ms. Mandel said) that hangs in the center of the master bedroom.
One unidentified caller said the driver was acting strangely, adding: "I think he's smoking something".
Strangely enough, I think we wouldn't mind the Flyers doing well.
Strangely, when I think of the best wave I've ever surfed — the one breaking off an uninhabited island in Fiji — I hear no music at all.
"Strangely enough I think Adele sings in her own voice, I think it's her trying to be a big voice and that's her".
