Expresses directional movement towards or away from a space/surface.
walk into the room, jump out of the car, step onto the stage, fall off the bike
not into the water
Did he run into the building?
Expresses movement following a path or passing through a space.
walk through the tunnel, swim across the river, walk along the beach
not through the woods
Shall we walk across the street?
| Example / Question | Positive / Short Answer | Negative / Short Answer |
|---|---|---|
| 3D Space: Tunnel / Forest | Use: THROUGH (through the tunnel) | Not: across the tunnel |
| 2D Surface: Road / River | Use: ACROSS (across the road) | Not: through the road |
| Rule | Base / Standard Form | Applied Form |
|---|---|---|
| Through vs Across Distinction | Use THROUGH for 3D enclosed spaces (tunnel, door, forest). Use ACROSS for flat surfaces/lines (street, field, river). | through the park vs across the bridge |
Used with verbs of movement (run, walk, drive, fly, jump, climb).
No! "In" describes static position ("I am in the room"). "Into" describes movement towards the inside ("I walked into the room").