back at work — be back + place (Murphy Unit 137, Phrasal verbs 1)

Pattern

be back + at/in + [place] = have returned to a place/situation.

• Next week I’ll be back at work. (returned to working after holidays)
• She’s back at school.
• He’s back in the office.

back = returned

“Back” alone = returned (adverb). Pair with the place’s preposition:

• be back at work / at school / at home (at + institution/home)
• be back in the office / in London (in + building/city)
• be back from holiday (from + origin)

Fixed “at” places

Work/school/home take “at” without articles (institution sense):

• at work, at school, at home, at university — no “the”
• I’ll be back at work on Monday.

back at vs back to (the state/movement split)

Both are correct English — the choice hangs on the verb:

	back at	back to
Meaning	returned, already there (STATE)	going back, direction (MOVEMENT)
Verb	be	go / come / get
Example	I’ll be back at work.	I’m going back to work.

• be back at/in = you HAVE returned: I’ll be back at work next week (state)
• go/come back to = the act of returning: I go back to work on Monday (movement)

Why the prepositions differ: “back at work” = location state (at work = fixed phrase for workplace); “back to work” = direction toward the destination. Same verb “back”, different geometry — at = being there, to = moving there.

Context clue: if the sentence uses be → at (state). If it uses go/come/get → to (movement).

• I’ll be back ___ work → at
• I’ll go back ___ work → to

Test application

My holidays are nearly over. Next week I’ll be ___ ___ work.

Answer: back at — returned to work. “back” (returned) + “at work” (fixed phrase). The verb “be” signals state → at.

Source

Raymond Murphy, English Grammar in Use (4th ed.), Unit 137 — Phrasal verbs 1. Ebot lesson 2026-08-29: “Next week I’ll be ___ ___ work” → back at.