Past tense of strong verbs (singular)

Strong Verbs: 1st and 3rd Person Singular

Unlike regular verbs that take predictable endings (like -ði or -ti), strong verbs in the past tense change their core vowel.

For the singular pronouns ég (I) and hann / hún / það (he / she / it), the past tense form is identical. There is no special ending—just the vowel change.

InfinitivePast Tense (ég, hann, hún, það)Meaning
dettadattfell
skeraskarcut
bítabeitbit
stígasteigstepped
grípagreipcaught
finnafannfound

To tell anecdotes about minor mishaps, you will often use words like óvart (accidentally) and óhapp (accident).

I accidentally fell outside yesterday.
Ég datt óvart úti í gær.
I accidentally cut myself.
Ég skar mig óvart.
The dog bit me, this was an accident.
Hundurinn beit mig, þetta var óhapp.
The cat stepped on the glass.
Kötturinn steig á glerið.
The cup fell but the man caught it.
Bollinn datt en maðurinn greip hann.

The 2nd Person Singular: "þú"

When talking directly to someone using þú (you), strong verbs in the simple past tense add the ending -st to the 1st/3rd person form.

For example, skar becomes skarst, steig becomes steigst, and greip becomes greipst. If an accident involves a cut, you might also need plásturinn (the Band-Aid).

Did you step on the glass accidentally?
Steigst þú óvart á glerið?
I found the Band-Aid because you cut yourself.
Ég fann plásturinn af því að þú skarst þig.

Luck and Mishaps

When sharing stories about unexpected events, you will often comment on whether someone was heppinn (lucky) or óheppinn (unlucky).

You caught the toy, you are lucky.
Þú greipst leikfangið, þú ert heppinn.
The boy was unlucky because he fell.
Strákurinn var óheppinn af því að hann datt.

When talking about multiple people (such as við or þau in a mixed group), these adjectives change to their neuter plural forms: heppin and óheppin.

We are lucky but they are unlucky.
Við erum heppin en þau eru óheppin.