Final answer:
The proper form of the verb in the present tense when writing about yourself (yo) and the verb ends in -ar is to remove the -ar ending and add -o instead.
Step-by-step explanation:
The proper form of the verb in the present tense when writing about yourself (yo) and the verb ends in -ar is to remove the -ar ending and add -o instead. For example, if the verb is hablar (to speak), the proper form for 'I speak' would be 'yo hablo'.