it has been standing up for 87 years
the great wall has been standing for over 2500 years
Wrexham swimming baths has been standing since May 1970
A thousand years
The phrase (not sentence) 'long-standing army' is grammatically correct. It means 'an army that has been established for a long time.'
for 358 yrs
2 minutes
SINCE 438 bc
billion mounths
Since about 550 AD.
It's been around for around 45 years and it is still standing today.
You can track your standing time throughout the day by using a fitness tracker or a smartphone app that monitors your activity levels. These devices can provide you with data on how long you've been standing and remind you to take breaks if you've been sitting for too long.