Past tense consonant gradation

In this lesson, you will practice discussing the news, journalism, and the media. Along the way, we will review how consonant gradation (changes to k, p, and t) applies to verbs in the past tense.

Verb Type 4: Reverse Gradation

Verb Type 4 (verbs ending in -ata/-ätä, -ota/-ötä, etc.) undergoes reverse consonant gradation. The dictionary form is in the weak grade, but the conjugated stem switches to the strong grade for all persons.

For example, tavata (to meet) has a weak v, which changes to a strong p in the past stem (tapasi-).

Verb Type 1: Closed Syllable = Weak Grade

For Verb Type 1, the rule of thumb is: if the personal ending closes the syllable, use the weak grade.

Endings that end in a consonant (like -n, -t, and -mme) close the syllable, triggering the weak grade of the verb stem.

• lukea (to read): strong k → weak - (drops out). Past stem: lui-

• jakaa (to share): strong k → weak - (drops out). Past stem: jaoi-

• kertoa (to tell): strong rt → weak rr. Past stem: kerroi-

Comparing Strong and Weak Grades in Type 1

Third-person forms (hän, se, he) leave the final syllable of the stem open, so they take the strong grade.

Let's look at väittää (to claim). The strong grade is tt and the weak grade is t.

Notice how the journalist (third-person singular) uses the strong grade tt:

But when "we" claim something, the ending closes the syllable, forcing the weak grade t:

The same rule applies to verbs like käyttää (to use), where tt weakens to t for "I", "you", "we", and "you (plural)".