The form comes after the root of the verb. These are remnants of the personal pronouns. They indicate person, gender, and number. There is always agreement in person, gender, and number of verbs and their subjects. Designating a verb that does not require a direct object.
Qatal verbs are typically dynamic involving some sort of action.
Qatel and Qatol typically are stative describing a state or condition. A perfect may be translated as a past perfect, i.e., as an action completed prior to a point of reference in past time. A perfect may be translated in the present tense when it represents a verb of perception, attitude, disposition, or mental or physical state of being. A perfect prefixed with a vav conjunction will usually be translated in the future tense.