The spelling of "in constantly" is straightforward once you understand the phonetic transcription. The first sound is "ɪn," which represents the short "i" vowel sound. This is followed by "kɒnstəntli," which has three syllables. The first syllable is pronounced with a hard "k" sound, followed by the "oh" vowel sound, and ending with the "n" consonant. The second syllable is pronounced with a short "u" vowel sound and the third syllable has the "li" sound. Together, these sounds create the word "in constantly."
The term "in constantly" seems to be a combination of the preposition "in" and the adverb "constantly". However, it is important to note that "in constantly" is not a common or standard phrase in English. The word "constantly" is derived from the Latin word "constans", which means "standing firm" or "steadfast". The prefix "con-" in Latin signifies "together" or "with". Over time, "constans" evolved into the Middle English term "constaunt" and eventually became "constant" in modern English. It signifies something that is unchanging, unwavering, or continuous.