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Yes. The conditional phrase "should have been seen" contains a string of auxilary verbs.
No. It is two auxilary verbs. "Should" is a modal auxilary, and "have" is the auxilary used to make the perfect aspect. "Should have" can be used with linking verbs (he should have been happy) or with action verbs (he should have driven), but is itself neither.
so that you know a car is driving at you, as opposed to away
The head lights are called running lights and they make a car more visible to other drivers. This is really true if it is a light colored car and if people are using two lane roads at dusk.
In most places you do.
Siren, Flashing Lights, Bars, Two Way Radio, Computer
There are many good ways to illuminate a two car garage. One good way is to purchase fluorescent lights. Fluorescent lights are inexpensive and a good way to light up the garage.
Fog lights are in the front; they are commonly referred to as "brights" because they are the brighter of the two standard headlights. Brake lights are in the rear; they light up when pressure is applied to the brakes or when the car is in park or reverse.
Some cars had a delayed headlight turn-off system, to keep the lights on for a minute or two after the car was turned off. This was to provide you a courtesy light as you walked up to your front door.
There are two filaments in a car headlight. One is higher than the other. When you dip the lights, one filament turns off and the other turns on.
There are two or more faults at work here depending on the car. If your car has a relay that runs brake lights or Tail lights one or both could be bad. OR If your car has these items controlled by a body control module it could be bad or with this system the computer grounds the bulbs to make them work and damage to the wires anywhere in the car can cause this. OR You have a brake light switch that keeps the brake lights on all the time AND a bad ground in the system so the Brake lights ground through the tail lights. This kind of thing is more common on per 2000 model year vehicles.
Almost every car nowadays come with a turning signal. If you do not have a turning signal, a legal way to signal that you are going to turn would be to stretch out your hand in the direction that you are turning to. Otherwise, you can install two lights (flashing or not) on the two corners of your car. Link it to the buttons near the driver's seat for convenience, and press the button to activate the lights as a signal.