Pipe system has been installed vs Pipe system have been installed

The correct phrase is "pipe system has been installed." The verb "has" agrees with the singular subject "pipe system."

Last updated: March 25, 2024 • 729 views

This phrase is correct. The verb "has" agrees with the singular subject "pipe system."

"Pipe system has been installed "

Use this phrase when referring to the installation of a singular pipe system.

Examples:

The pipe system has been installed in the new building.
Once the pipe system has been installed, we can test the water flow.
I can confirm that the pipe system has been installed correctly.
The engineer ensured that the pipe system has been installed securely.
Have you checked if the pipe system has been installed properly?

Show examples from the web [+]

Member States shall ensure that the hydrocarbon capture efficiency is tested at least once per annum where an automatic monitoring system has been installed.
On our initiative several warning devices have been installed there.
In addition, phthalic acid esters may be passed into drinking water from the pipe system.
Tanks and pipe systems for flammable liquids
for Wavin: manufacture and supply of pipe systems.
It is, therefore, widely known that phthalic acid esters (plasticisers) are passed into drinking water from the pipe system.
In addition, phthalic acid esters may be passed into drinking water from the pipe system.
The conditions in London, for example, where water leaks from neglected pipe systems, would be inconceivable in those countries.
The Member States will be deemed to have complied with this rule if any failure to comply with the limit is solely due to private pipe systems.
They also argue that the product of IBIDEN HU is a multifunctional part fitted into the exhaust pipe system.
Tanks and pipe systems for flammable liquids
Special requirements for tanks and pipe systems for flammable liquids (including fuel)
Significant amount of wind power capacity has been installed recently.
The part you have here has been installed, inspected and designed by over 100 highly trained technicians.
All available upgrades have already been installed.
In which Commission computers has Internet Explorer been installed? 2.
If only US English is available, no translations have been installed.
The instruments for achieving the necessary comprehensive alterations set out in the March 2000 White Paper on Reform Strategy have been installed and are operational.
At the present time, there are 250 Greeks left on Imbros, while 9000 Turkish settlers have been installed.
How many ATMOS devices have been installed?

This phrase is incorrect. The verb "have" does not agree with the singular subject "pipe system."

"Pipe system have been installed "

Show examples from the web [+]

For this purpose, diesel dynamic UPS systems have been installed in each of the three navigation lighting stations on the southern runway.
On our initiative several warning devices have been installed there.
Significant amount of wind power capacity has been installed recently.
The part you have here has been installed, inspected and designed by over 100 highly trained technicians.
All available upgrades have already been installed.
In which Commission computers has Internet Explorer been installed? 2.
If only US English is available, no translations have been installed.
In addition, phthalic acid esters may be passed into drinking water from the pipe system.
Tanks and pipe systems for flammable liquids
for Wavin: manufacture and supply of pipe systems.
It is, therefore, widely known that phthalic acid esters (plasticisers) are passed into drinking water from the pipe system.
In addition, phthalic acid esters may be passed into drinking water from the pipe system.
The conditions in London, for example, where water leaks from neglected pipe systems, would be inconceivable in those countries.
The Member States will be deemed to have complied with this rule if any failure to comply with the limit is solely due to private pipe systems.
They also argue that the product of IBIDEN HU is a multifunctional part fitted into the exhaust pipe system.
Tanks and pipe systems for flammable liquids
Special requirements for tanks and pipe systems for flammable liquids (including fuel)
Member States shall ensure that the hydrocarbon capture efficiency is tested at least once per annum where an automatic monitoring system has been installed.
The instruments for achieving the necessary comprehensive alterations set out in the March 2000 White Paper on Reform Strategy have been installed and are operational.
At the present time, there are 250 Greeks left on Imbros, while 9000 Turkish settlers have been installed.

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Pipe system has been installed vs Pipe system have been installed