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What else can I help you with?
What has been used in the past?
what has sulfur been used in the past?what has sulfur been used in the past?
Has the energy source been used in the past?
Yes it has been successful in the past
What has sulfur been used in the past?
Sulfur has been historically used in the production of gunpowder, as a fumigant for pest control, in traditional medicine for skin conditions, and as a component in the vulcanization of rubber.
What is Have been and had been?
Have been is present tense and had been is past tense.
Have dogs ever have been used for lifeguards?
I don't know if dogs have ever been used as life guards but they have saved people who were drowning.
Can a dog go in a satellite?
Yes, it has been done. Before manned spaceflight, the Russians sent a dog (Liaka) into orbit in 1957. The US sent chimpanzees.
What is a past participle of been?
Have been or Has been IS the past participle......it is equivalent to "was".
Has biomass energy source been successfully used in the past?
Yes it has been successful in the past
What is the different between the have and have been?
Have is used for present and Have been is used for past continous.
How many dogs was used as Georgia bulldogs football team mascot?
there have been 7 dogs used for the mascot
How many arfican dogs were alive in the past?
There were about 500,000 African dogs living in the past.
What is the past participle of use?
Used (e.g "It had been used for...", "John was used", etc.)
