The past tense of instore is instored. See all forms of instore with easy examples.

The past tense of instrengthen is instrengthened. See all forms of instrengthen with easy examples.

The past tense of instop is instopped. See all forms of instop with easy examples.

The past tense of instream is instreamed. See all forms of instream with easy examples.

The past tense of institutionalize is institutionalized. See all forms of institutionalize with easy examples.

The past tense of instill is instilled. See all forms of instill with easy examples.

The past tense of institutionalise is institutionalised. See all forms of institutionalise with easy examples.

The past tense of instimulate is instimulated. See all forms of instimulate with easy examples.

The past tense of instil is instilled. See all forms of instil with easy examples.

The past tense of institute is instituted. See all forms of institute with easy examples.