First, you have to die. Once you have been dead at least 5 years a cause
for sainthood can be opened. The local bishop or other religious leader
will assign someone to collect all sorts of documents and conduct
interviews about the life of the candidate. Once they have all the
information, the file will be sent to the Sacred Congregation for the
causes of Saints in Rome. They will study the file and, if it seems the
person exhibited some form of heroic virtue, that person will be declared
a Servant of God and an official Cause for Sainthood will be opened.
More investigations and interviews will be conducted and if the person
passes all favorably, they will be named as Venerable.
Next, more investigations and at least one miracle must be confirmed and
verified due to the intercession of the candidate. If all goes well, the
candidate will then be Beatified by the Pope and receive the title of
Blessed. Mother Teresa of Calcutta is at this stage right now.
In the final stage, more investigations and at least one more miracle must
be verified. Once all that has been done, the file is turned over to the
pope who will make the final decision. It will be up to the pope to
declare a person a saint and then arrangements are made for the official
canonization ceremonies.
This process can take many years, even centuries.
Of course, the person became a saint the moment they entered heaven. The
Church just needs to investigate to make sure the candidate is worthy of
emulation and makes a good role model for future generations.
She has been beatified but not canonized.
St. Christopher was neither beatified nor canonized.
Saint Paul was neither beatified not canonized. He was declared a saint long before the canonization process was introduced.
Cecilia was neither beatified nor canonized. She was proclaimed a saint by early Christians based on her martyrdom.
Saint Anselm of Canterbury (d. 1109) was not beatified but was canonized in 1492 by Pope Alexander IV.
No, she has been beatified but not canonized.
She has been beatified but is not yet a canonized saint,
No, as of 2010 she has been beatified but not canonized.
St. Brigid was never beatified or canonized. She became a saint in the first millennium, before the canonization process was standardized by the Vatican. She became a saint by popular acclaim rather than ever being formally canonized.
We do not know when, or if, Catherine was beatified but she was canonized in July 1461 by Pope Pius II.
He has been beatified but has not been canonized.
Monica was neither beatified nor canonized. She was declared a saint by the early Christian community long before the official canonization process was in place.