Write the following articles and nouns in their plural forms: el lápiz la nariz el profesor el ratón

los lápices

las narices
los profesores
los ratones

los lápices

las narices
los profesores
los ratones

To form the plural form of articles and nouns in Spanish, we usually add -s or -es at the end, depending on the word's ending. Let's pluralize the words you provided:

1. El lápiz (the pencil) - los lápices (the pencils)
To form the plural of "el lápiz," we replace the -iz ending with -ices.

2. La nariz (the nose) - las narices (the noses)
The word "nariz" ends in a consonant, so we simply add -es to make it plural.

3. El profesor (the teacher) - los profesores (the teachers)
Similar to "el lápiz", we replace the -or ending with -ores to form the plural.

4. El ratón (the mouse) - los ratones (the mice)
The ending -ón changes to -ones to form the plural form of "ratón."

Remember that in Spanish, the articles (el/la) also change to plural forms (los/las) to agree with the nouns they precede.