This is a once in a lifetime opportunity, so please don't miss it.

This is truly a once in a lifetime opportunity.

He traveled east, west, south, and north.

I do laundry using synthetic detergent.

I repaired the broken vase using instant glue.

He recognizes the danger of extremism.

He has already finished writing the report, so we use the present perfect form.

She is learning the grammar of the present progressive form.

The phrase 'the good and bad deed cancel out' perfectly describes his past actions.

Tatsumi picked up the wallet and brought it to the police box.