Sentence examples for existence since from inspiring English sources

I have suspected its existence since about the fourth grade.

The Old Homestead has been in existence since about 1820.

Agglomeration is a natural phenomenon which has been in existence since solids first formed on earth.

This process happens despite land use planning regulations being in existence since the late 1970s.

Government trainings in existence since 1955 have not changed TBA knowledge.

The conventional wetland system using Phragmites sp. is in existence since 20 years.

It's been in existence since 1973.

The home has been in existence since 1869.

This practice has been in existence since 1961.

FRANK: That has not been in existence since 1866.

Sequim Animal Hospital has been in existence since 1930.