“The cat jumped on to the sofa.”
Grammar Entry 627 / 1011 60-second read
Onto vs. On to
Motion versus continuation.
The comparisoni
“The cat jumped onto the sofa.”
The ruleii
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ONTO = up onto. ON TO = continued action.
ONTO (one word) indicates motion up on top. ON TO (two words) suggests continuation: "move on to the next item."
Memory aidiii
Remember it like this
Landing surface = onto.