estaban testificando
-they/you were testifying
Imperfect progressive ellos/ellas/ustedes conjugation of testificar.

testificar

Él estaba sentado en la mesa de la fiscalía y fue visto dando señales a los testigos mientras estaban testificando.
He was sitting at the prosecution's table and was seen giving cues to the witnesses while they were testifying.
Word of the Day
frozen