Prepositions of Sequence and Condition

at a later time than something

After dinner, we'll watch a movie.

at an earlier point in time

I had visited that city before.

to move or travel behind someone or something

The team followed their leader up the mountain.

used to indicate that something happens or is done before a particular event or point in time

Please submit your report prior to the deadline.

following in time or order

Subsequent to the merger, the company rebranded entirely.

used to convey that something is happening or exists after and often due to another event or action

In the wake of the hurricane, the community rallied together to support those affected.

to be unsuccessful in accomplishing something

Despite their best efforts, the plan failed.

if a specific situation or event occurs

We have a backup generator in case of power outage.

if a particular situation occurs

In the event of a fire, please use the nearest exit and evacuate the building.