The past tense of standardise is standardised. See all forms of standardise with easy examples.
The past tense of stand-to is stood-to. See all forms of stand-to with easy examples.
The past tense of stand is stood. See all forms of stand with easy examples.
The past tense of stanchion is stanchioned. See all forms of stanchion with easy examples.
The past tense of stanch is stanched. See all forms of stanch with easy examples.
The past tense of stampede is stampeded. See all forms of stampede with easy examples.
The past tense of stamp is stamped. See all forms of stamp with easy examples.
The past tense of stammer is stammered. See all forms of stammer with easy examples.
The past tense of stallfeed is stallfed. See all forms of stallfeed with easy examples.
The past tense of stall is stalled. See all forms of stall with easy examples.