تَتْبَعُهَا ٱلرَّادِفَةُ
Ayah summary
The second blowing of the Trumpet will follow it.
Sentence structure
تَتْبَعُ is the verb, attached هَا its object referring back to ٱلرَّاجِفَةُ, and ٱلرَّادِفَةُ the explicit subject.
تَتْبَعُهَا — will follow it
Grammar: A third-person feminine singular imperfect verb. Attached هَا is a feminine singular object pronoun referring back to ٱلرَّاجِفَةُ.
ٱلرَّادِفَةُ — the following convulsion
Grammar: A definite feminine singular nominative active participle used substantivally and functioning as the subject of تَتْبَعُ.