Modifies a noun

• verb: Using a Perfective aspect verb you can only form the past tense and the future tense.

• aspect: It is used with ' have ' to make the present perfective aspect, e.g. They have landed.

• form: The first one is mother tongue interference: in this type of text in Polish we use imperfective rather than perfective verb forms.

• participle: It is from the verb " sever " but it is past, passive, and adjectival, i.e. a perfective passive participle.

• marker: The latter results in effect in a split between two series of perfective concord markers.

• stem: The class division among perfective stems was somewhat more complex.