five years
The preamble to the US Constitution has never been amended.
The U. S. Constitution has been amended twenty seven times.The Constitution, has been amended 17 times since the first 10.
It has been amended only once!
The verb phrase is - has been amended.
The constitution can be amended, and indeed, has been amended many times. With enough voter support you can make any change you like.
29
16 times
16 times
The state of Ohio's constitution has been amended approximately three times. It was amended in 1802, 1851, and again in 1912.
their are 18 article in the 1987 constitution in the Philippines
3 Times
approximately almost 21 years of service during in marcos constitution