apretabas
-you were pressing
The word apretabas is the imperfect form of apretar in the second person singular. There are other translations for this conjugation.
See the full apretar conjugation

apretar

Y cuando la pasábamos, tú apretabas mi mano.
And when we'd walk by, you'd hold my hand.
Lo siento, es que me apretabas muy fuerte.
Sorry. You were just gripping me so tight.
¿Se lo apretabas con la puerta? No sentía nada.
You could slam it in a door and he felt nothing.
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