Kalam of Allah (SWT) - as in Qur’an - With reference to Divine Speech - noting the term “We” or the Royal Personal Pronoun exists only in Al-Kitaab - This has been sealed and no more of this will come. (This is directly poured in to the heart bypassing all senses)
Hadith Qudsi - Direct instruction of Allah (SWT) other than through Revelation - sealed - Acquired through some sensory medium - These will not be in the style of Qur’anic Ayat.
Wisdom - Divinely Inspired words of prophets - Isa (AS) will have these (this is not direct revelation) - these are feelings and moods and angelic assistance, which are guided - these are without taint in prophets.
Prophetic Dreams - Isa (AS) - These are imagery that require interpretation - some normal people can get these or part of these in their dreams.
Interpretive capabilities of scripture and high intellect - some people can interpret symbolic visions and have the knowledge to extract sound rulings - these will be done effortlessly by Sayyiduna Isa (AS), but other people can do them.
The type of revelation that you claim and Mirza Ghulam Ahmad claims he received does not fit this pattern. Rather I can show you where the words that are used by Mirza Ghulam Ahmad a resembling the Qur’anic style … which indicates to me that such phrases were borrowed … especially if you then claim that it is not Divine Speech … but then what is it?