Japanese phrase
___かと存じます。 ___ ka to zon ji ma su
Meaning
I believe it is ___.
When to use it
Expresses a polite, humble belief about something. It is formal and common in business settings when the speaker is not completely certain.
Example dialogue
今回の担当はどなたですか？ kon kai no tan tō wa do na ta de su ka
Who is handling this?
田中さんかと存じます。 ta naka sa n ka to zon ji ma su
I believe it is Mr. Tanaka.