Questions & Answers about המשטרה מתחילה פעולה.
ה־ is the Hebrew definite article, the equivalent of the. It is attached directly to the noun.
- משטרה = police / a police force
- המשטרה = the police
So Hebrew uses a prefix here instead of a separate word like English the.
In Hebrew, משטרה is grammatically singular feminine. It refers to the police as one institution, not as a group of individual officers.
That is why the verb is also singular:
- המשטרה מתחילה = the police is starting / the police starts
If you meant individual police officers, you would use a plural noun such as שוטרים or שוטרות.
Hebrew present-tense verbs agree with the subject in gender and number.
Since המשטרה is feminine singular, the verb must also be feminine singular:
- מתחיל = masculine singular
- מתחילה = feminine singular
So מתחילה matches המשטרה correctly.