Back
Intermediate

Verb Aspect

Imperfective vs perfective

Most verbs come in aspect pairs

imperfective (process) and perfective (completed).

📊 Aspect
Aspect Focus Example
imperfective ongoing, habitual, process czytać (to read)
perfective completed, one-off result przeczytać (to read fully)
imperf. future 'będę' + infinitive będę czytać
perf. future present-form przeczytam
💬 Examples
robić / zrobić
to do (process / completed)
📝 imperfective / perfective pair
pisać / napisać
to write
📝 Often a prefix marks the perfective
Imperfective for ongoing; perfective for completed

The core distinction.

💬 Examples
Czytałem książkę.
I was reading a book.
📝 Imperfective past = process
Przeczytałem książkę.
I read (finished) the book.
📝 Perfective past = completed
Perfective verbs have no present tense

Their 'present' form is future in meaning.

💬 Examples
Piszę list.
I am writing a letter.
📝 Imperfective present (ongoing)
Napiszę list.
I will write a letter.
📝 Perfective present-form = future