Idont understand!

fill in the blank with the correct imperfect form of the verb in parentheses.

mis amigos y yo (correr) por el parquet .

you may copy and paste any of the following special characters if you need them:
á é í ó ú ü
á é í ó ú ü ñ ¿ ¡ .

In this question all you need to do is change your word corer (which means to run) and Chang it to the correct er from.
In this sentence it says Mis, amigos y yo ( my friends and I). So we are in the nosotros (we) form. There for we would replace our er with the ending emos. Making our new word corremos.  That is the new word you need to fill in the blank with :)
I hope this was helpful if you have any further questions pleas feel free to ask