"Arcadia" proceeds more or less simultaneously in two time frames.

And this time, several missions would be proceeding simultaneously.

In this country, at least, talking and killing can proceed simultaneously.

The growth of consciousness about myself proceeds simultaneously with an awareness of guilt.

Everything is ready, all the tortures are in motion, and they proceed simultaneously, amidst much noise.

The work began in Komorów and proceeded simultaneously in two directions.

The film proceeds simultaneously on three and sometimes four levels.

The cable can remain on and environmental compliance can still proceed simultaneously.

Work on the chicken and the egg will proceed simultaneously.

This can be seen as a discrete set of phases, except that they all proceed simultaneously.