biennial
semi-annually - happening every half year bi-annual - coming twice a year NOT biennial - happening every two years
The noun phrase in the sentence "they are usually reported every two years" is "they." This phrase serves as the subject of the sentence, indicating the entities that are being reported. The rest of the sentence provides additional information about the frequency of the reporting.
Biennial means every two years.
This phrase refers to the Congressional elections which are held in the even-numbered years between the Presidential elections. (Congressional elections are held every two years.)
Representative seats are contested every two years. The Presidency is contested every four years. Senate seats are contested every six years, staggered out every two years (so 33 senators, then 33 two years later, then the last 34, then repeat)
They are held every 4 years, not every 2 years
The word Biennial means Every two years
Every two years.
Quadrennial
Biennial is once every two years. Biannual is twice every year.
Biennial means "occurring every two years," OR "lasting for two years." The word biannual can also mean "occurring every two years," although its most common meaning is "occurring twice a year."
Biannual~ this means twice in one yearbiennial~ this means once every two years