Construction -GANI -GAN

The construction "verb-GANI verb-GAN", i.e. the past gerund plus the possessive form of the personal suffix followed by the indefinite past, expresses an uninterrupted continuous activity, which can even become excessive.

O'qigani o'qigan.
He is doing nothing else but studying and studying.

Yurgani yurgan.
He is keeping walking and walking.