shrinked? Generally, shrank is the simple past tense form of "shrink" like in "I shrank the shirt in the wash." Shrunk is the past participle being paired with "have" as in "I have shrunk the jeans." There are rarer examples of shrinked and shrunken in literature but not enough to support those usages as standard.

What is shrunk?

shrank, often, shrunk; shrunk shrunk•en; shrink•ing; v.i. 1. to contract or lessen in size: cloth that shrinks if washed. 2. to become reduced in extent, compass, or value. 3. to draw back; recoil: to shrink from danger. 4. to cause to shrink or contract; reduce.

What is the past tense of spring?

The past tense of spring is sprang and the past participle is has/have sprung.