No, once you have been born into a country you remain a citizen of that country even if you immigrate. Certain rights of a US citizen can be suspended or revoked if that person has been convicted of a criminal felony.
The law prohibits the taking of your citizenship against your will, but there are certain actions a citizen can take which are classed to be a free-will decision that constitutes renunciation of their citizenship. Which means if you commit these such acts you are willfully aggreeing to the loss of your citizenship.
The ways to lose your natural born US citizenship are detailed in 8 USC 1481:
1.Becoming naturalized in Another Country.
2.Swearing an oath of allegiance to another country.
3.Serving in the armed forces of a nation at war with the U.S., or if you are an officer in that force.
4.Working for the government of another nation if doing so requires that you become naturalized or that you swear an oath of allegiance to that country.
6.Being convicted of committing treason.
According to the Ethiopian Nationality Law Proclamation, one can lose their Ethiopian citizenship if they renounce it. One can also lose their citizenship if one of the parents of an Ethiopian child is not an Ethiopian citizen. If one has been discharged from the law or gotten in trouble with the law loss of Ethiopian citizenship is also eminent.
you are the one who voluntare to loss your citizenship
No.
You never lose US citizenship unless you either renounce it voluntarily or by serving in the army of a country that is in war with the US.
Never.
Not unless you renounce your Canadian citizenship voluntarily.
you can have two citizenships
No you cannot lose it generally, you can only lose it if 1) you have commited some kind of major crime 2) you have lied when applying for citizenship 3) you got another countries nationality/citizenship before 2002
no you won't, you will have a dual citizenship which ok, but you can't swear to both countries
No!
NoSee US Citizenship and Moving Abroad.http://www.richw.org/dualcit/faq.html
No.