Imperfect Continuous - Irregular Gerunds
Spanish: Cambridge International GCSE, topic 10.3.8
Imperfect/Past Continuous with Irregular Gerunds
To form the imperfect continuous, use the imperfect form of 'estar' followed by the irregular gerund. It is used to talk about ongoing actions in the past.

Estaba leyendo - I was reading

Estabas eligiendo - you were choosing

Estaba viniendo - he/she was coming / you were coming (formal)

Estábamos trayendo - we were bringing

Estabais mintiendo - you were lying (plural)

Estaban riendo - they were laughing / you were laughing (formal plural)
Test yourself on Imperfect Continuous - Irregular Gerunds
What is the gerund of 'reír' in Spanish?