16 times
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.
29
The constitution can be amended, and indeed, has been amended many times. With enough voter support you can make any change you like.
The United States Constitution was written in 1787 and ratified in 1788. It has 27 amendments, but the first 10 were ratified simultaneously in 1791 so it was amended one time with ten amendments. The other 17 amendments were ratified one at a time. So the US Constitution has 27 amendments but has been amended 18 times.
The US Constitution has been amended 5 time to extend voting rights. The 15th, 19th, 23rd, 24th and 26th amendments were regarding voting rights.
There is no British Constitution, so it cannot be amended.
16 times
five years
The state of Ohio's constitution has been amended approximately three times. It was amended in 1802, 1851, and again in 1912.