вводи́тьсяввести́сь

Imperfective вводи́ться (ongoing or repeatedly)

Perfective ввести́сь (completed or one-time)

Very rarely used word (top 20,000)

verbreflexive

1.
to be introduced, to be injected, to be entered, to be inserted(вводи́ться)
Example:
Тут вводятся специальные льготные условия для международных компаний.
Special preferential terms for international companies are introduced here.
2.
to be introduced, to be implemented, to come into effect(ввести́сь)
Example:
Новая система верификации ввелась в действие с начала месяца.
The new verification system came into effect from the beginning of the month.

Past

	imperfective	perfective
ты	вводи́сь!	!
вы	вводи́тесь!	!

Active present	вводя́щийся	being introduced, being implemented, being put into effect, that is introduced, that is implemented
Active past	вводи́вшийся	being introduced, being implemented, being instated
Passive present
Passive past
Gerund present	вводя́сь	while doing (present)
Gerund past	вводившись	while doing (past)