Along and Across — English Grammar Exercises
Into, onto, off, along, across and more — master movement prepositions
Along and Across: Following vs Crossing
Both prepositions describe surface movement, but the direction differs relative to the surface. Research on B1–B2 learner corpora shows that along/across confusion is particularly common with nouns like 'bridge', 'corridor', 'river', and 'road', where learners must identify whether movement follows the surface lengthwise or cuts across it. A secondary error is substituting 'on' or 'through' for 'along'.
Along — Following the Course of Something Linear
Use along when movement follows the direction or length of a linear feature — a river, a road, a coast, a path, a corridor:
They drove along the coast, stopping at small towns on the way.
We strolled along the beach, looking for shells.
Across — From One Side to the Other of a Surface
Use across when movement goes from one edge to the opposite edge of a flat surface or open area:
The children swam across the pool to see who was fastest.
She ran across the road and along the river bank.
Telling Them Apart
Ask: am I moving parallel to the feature (along) or perpendicular to it (across)? Walking along the river = same direction as the river. Swimming across the pool = from one end wall to the other.
Common Mistakes
✗ We walked through the bridge. → ✓ We walked across the bridge.
✗ They cycled on the river path. → ✓ They cycled along the river path.
✗ We walked on the river bank. → ✓ We walked along the river bank.
Frequently Asked Questions
What is the difference between 'in' and 'into'?
'In' describes where something already is (static location): 'She is in the kitchen.' 'Into' describes movement from outside a space to inside it: 'She walked into the kitchen.' The key test is whether the sentence describes arrival or presence. Common fixed collocations: get into a car/taxi, walk into a room, jump into a pool, step into an elevator.
What is the difference between 'on' and 'onto', and between 'from' and 'off'?
'On' is static — it describes where something already rests: 'The book is on the table.' 'Onto' describes movement from one level to a surface: 'The cat jumped onto the table.' For leaving a surface, English uses 'off', not 'from': 'The book fell off the table' (not 'from the table'). 'From' describes origin or starting point, not the act of leaving a surface.
When do I use 'through' and when 'across' or 'over'?
'Through' describes movement inside a three-dimensional enclosed space from one end to the other: 'through a tunnel', 'through a forest', 'through a gap'. 'Across' describes movement from one side to the other of a flat or open surface: 'across the road', 'across the bridge', 'across the pool'. 'Over' describes movement in an arc above an obstacle: 'over the fence', 'over the hedge', 'over the mountains'. The bridge test: you go across a bridge (surface) but through a tunnel (enclosed space).
What is the difference between 'to' and 'towards'?
'To' implies reaching the destination: 'She went to the station' (she arrived). 'Towards' describes movement in a direction without necessarily arriving: 'She walked towards the station but stopped halfway.' If the sentence has a contrast word like 'but stopped', 'but changed her mind', or 'but didn't arrive', use 'towards'. Also: 'past' means moving beyond a point without stopping — 'She walked past the shop without going in.'