The past tense of ozonise is ozonised. See all forms of ozonise with easy examples.
The past tense of oxygenise is oxygenised. See all forms of oxygenise with easy examples.
The past tense of oyster is oystered. See all forms of oyster with easy examples.
The past tense of oxygenize is oxygenized. See all forms of oxygenize with easy examples.
The past tense of oxygenate is oxygenated. See all forms of oxygenate with easy examples.
The past tense of own is owned. See all forms of own with easy examples.
The past tense of oxidise is oxidised. See all forms of oxidise with easy examples.
The past tense of oxidate is oxidated. See all forms of oxidate with easy examples.
The past tense of oxidize is oxidized. See all forms of oxidize with easy examples.
The past tense of overwrite is overwrote. See all forms of overwrite with easy examples.