Active:
Present Simple : We select all necessary materials every day.
Past Simple : We selected all necessary materials yesterday.
Future Simple : We will select all necessary materials tomorrow.
Past Perfect : We had selected all necessary materials by 5 o'clock.
Future Perfect : We will have selected all necessary materials by 7 o'clock tomorrow.
Present Continous : We are selecting all necessary materials now.
Past Continuous : We were selecting all necessary materials from 10 o'clock till 12 o'clock.
Future Continous : We will be selecting all necessary materials at this time tomorrow.

Passive:
Present Simple: All necessary materials are selected .
Past Simple : All necessary materials were selected.
Future Simple : All necessary materials will be selected.
Past Perfect : All necessary materials had been selected.
Present Perfect All necessary materials have been selected.
Future Perfect : All necessary materials will have been selected.
Present Continous: All necessary materials are being selected.
Past Continous : All necessary materials were being selected.
Future Continous : -