Ability to use English is necessary, this.

As can be seen, English is usually studied in schools, ranging from elementary school.

Material must master the English language is to write the correct tense usage statement.

Tense verbs in English language using the method to represent an event (current, future and past) occurred at a time.

In this application, we will learn:
- Define the 16 states in English
- each sentence of formula tense
- each sentence embodiment State