Maxperson
Morkus from Orkus
Put another way. RAW does not allow actions to be divided up. There is no language allowing or disallowing it, so the default is that you can't do it without a DM rule. There are, though, specific exceptions to that. Readied Action, Bonus Action and Movement are notable exceptions. As is the Shield spell.
If your position was correct, there would have been no reason to write in such exceptions.
If your position was correct, there would have been no reason to write in such exceptions.