llegaríais
Llegaríais is the second-person plural form of the conditional simple of the Spanish verb llegar, meaning "you would arrive." It is used with the subject vosotros and corresponds to the English "you would arrive." The endings for regular -ar verbs in the conditional are -ía, -ías, -ía, -íamos, -íais, -ían; therefore, llegaríais is a regular form. The accent on í marks the stressed syllable in this mode, helping distinguish it from related tenses.
In Spain and other regions where vosotros is part of normal speech, llegaríais appears in sentences that
Llegaríais a tiempo si salierais ahora. This translates to "You (all) would arrive on time if you
Como forma regular, other subject forms follow the same pattern: yo llegaría, tú llegarías, él llegaría, nosotros
Llegaríais is a common, standard descriptor of a hypothetical action involving vosotros, and it is rarely used