Questions & Answers about Is het mogelijk dat zij morgen komt?
Why is komt at the very end of the sentence?
The word dat (that) introduces a subordinate clause. In Dutch, conjunctions like dat force the conjugated verb (komt) to move to the very end of that clause.
Why use the present tense komt if she is coming morgen (tomorrow)?
In Dutch, you can often use the present tense to talk about the future. Because the time word morgen already shows when it happens, you do not need to add a future tense verb like zal (will).
Could I say ze instead of zij in this sentence?
Yes, you can. Ze is the normal, unstressed word for she. Using zij adds a bit of emphasis, as if you are asking if it is possible that she is coming tomorrow, as opposed to someone else.
Why does the sentence start with Is het and not Het is?
The first part of the sentence is a main clause asking a yes/no question. Just like in English (Is it...?), Dutch swaps the subject (het) and the verb (Is) to ask a question.