For those who can read write and be able to explain their daily routines also give information about themselves (profession, age, place of origin, where they stay etc) but cannot or have grate difficulties to speak for the past and the future, even when they are trying to use in the past or future simple verbs like go, stay, work, give, take, say, drink, eat, etc. You can always change the course if you find it too easy or too difficult.