Final answer:
The correct conjugated form for the phrase 'Mi madre (es, está) llamándome' is 'está', while 'tengo' is the correct conjugated form for 'Tengo que irme'
Step-by-step explanation:
The correct conjugated form for the phrase 'Mi madre (es, está) llamándome' is 'está'. The reason for choosing 'está' is that the verb 'llamando' is a gerund, which is used to express ongoing actions in Spanish. The verb 'estar' is used when describing temporary states or actions, such as being on the phone in this case.
Furthermore, the phrase 'Tengo que irme' uses the conjugated form of 'ir', which is 'tengo'. This indicates that the speaker has to leave or go somewhere.
Learn more about Conjugation of 'ser' vs 'estar'