доска́зыватьдосказа́ть

Imperfective доска́зывать (ongoing or repeatedly)

Perfective досказа́ть (completed or one-time)

Very rarely used word (top 30,000)

Past

	imperfective	perfective
ты	доска́зывай!	доскажи́!
вы	доска́зывайте!	доскажи́те!

Active present	доска́зывающий		completing (a narrative), finishing (telling), adding (what was left unsaid)
Active past	доска́зывавший	досказа́вший	who was finishing saying, who was completing his statement, who was finishing telling
Passive present	досказываемый		being finished (telling), being completed (a story), being added (to a story)
Passive past		доска́занный
Gerund present	доска́зывая		while doing (present)
Gerund past	досказывав досказывавши	досказа́в досказавши	while doing (past)

доска́зывать: Wiktionary PONS bab.la Reverso