The magic time stop Conditions:
There is no time for other creatures to do 1W4 + 1 round in a row, in which you can use Actions and move as usual.
I wonder what counts in the above quote as "actions", whether it is just your action or bonus actions and reactions. The book seems to use the broad meaning of "action", at least in some cases. Some relevant quotes below:
The "Reactions" section states that reactions are a type of action (PHB page 190):
Certain special abilities, spells and situations allow you to take A special action called reaction,
From the "Bonus Actions" section, which states that bonus promotions are a type of promotion (PHB page 189):
Various class features, spells, and other abilities let you take An additional action on your turn is called a bonus action,
Also from the area "Bonus Actions":
Everything that deprives you of your ability to take Actions Also prevents you from running a bonus action
However, there is no corresponding section for reactions. However …
From the incapable state (PHB page 290):
An incompetent creature can not take Actions or reactions
And then from the Action Ready (PHB page 193):
Then choose the action You will take in response to this trigger …
Can the caster of time stop Are you still using your bonus promotions and reactions during the suspended time?