заду́мывать

verb, imperfective

Very rarely used word (top 40,000)

Examples

Э́тот тип что-то заду́мывает. Я э́то нутро́м чу́ю.This fellow is up to something. I can feel it in my spleen.

Imperative
ты	заду́мывай
вы	заду́мывайте

Active present	заду́мывающий	contemplating, thinking, pondering, intending, planning
Active past	заду́мывавший	who was planning, who was intending, who was conceiving
Passive present	заду́мываемый	planned, intended, conceived, contemplated, projected
Passive past	-
Gerund present	заду́мывая	while doing (present)
Gerund past	задумывав задумывавши	while doing (past)

плани́ровать
to plan; to schedule; technical / specialized: to glide (like a plane or bird)