Or search: spy, probe, analyze, canvass, enquire, explore, inquire, analyse
4 Syllables: SUUU
abrogated, aggregated, barricaded, celebrated, corrugated, decimated, decorated, dedicated, delegated, deprecated, desolated, devastated, educated, elevated, emanated, emigrated, estimated, federated, generated, instigated, irrigated, legislated, meditated, mitigated, navigated, obligated, penetrated, predicated, propagated, relegated, renovated, segregated, separated, subjugated, venerated
5 Syllables: USUUU
accelerated, commemorated, confederated, degenerated, disseminated, domesticated, interrogated, necessitated, perpetuated, premeditated, regenerated, unmitigated
6 Syllables: UUSUUU
overestimated, underestimated

Found 49 words across 3 groupings.