…the policemen… into the bank? (to run)

Simple present continuous :
rumus :
(+) S + To be (am/is/are) + Verb-ing
(-) S + To be (am/is/are) + not + Verb-ing
(?) To be (am/is/are) S + Verb-ing+ ?

…the policemen… into the bank? (to run)
answer : Are the policemen running into the bank?