Sentence examples similar to had been know for from inspiring English sources

It had been known for eighty years.

Efficient solution techniques had been known for many years.

"First, Apple had been known for years for the Mac.

The peatland problem had been known for some time.

AgNPs had been known for a long time but have been paid little attention.

He has been known for his philanthropy.

The Browns have been known for losing.

That problem has been known for decades.

Individual cases have been known for years.

It has been known for six months".

Those allegations have been known for decades.