Romanian dictionaries group verbs by the ending of the short infinitive, the citation form with a: a cânta, a vedea, a merge, and a hotărî. The ending is a useful filing label, not a promise that every present form follows one template: Eu lucrez aici. (I work here.)
What do the four conjugation groups mean?
The four traditional groups classify a verb by the final vowel or vowel sequence of its infinitive: -a, -ea, -e, or -i/-î.
| Group | Infinitive ending | Representative verbs | What to notice |
|---|---|---|---|
| 1st | -a | a cânta (to sing), a lucra (to work) | The largest traditional group; present stems can differ. |
| 2nd | -ea | a vedea (to see), a putea (to be able to) | The ending may disappear or change inside the present forms. |
| 3rd | -e | a merge (to go), a face (to do, to make) | Many common verbs belong here, including verbs with stem changes. |
| 4th | -i or -î | a dormi (to sleep), a hotărî (to decide) | -i and -î are one traditional group, with different infinitive spellings. |
How do you identify a verb in a dictionary?
Find the infinitive entry, keep the particle a, and inspect its final vowel or vowel sequence; then copy the principal present forms from the entry instead of guessing them.
- Look up the verb by its infinitive: a lucra, not only lucrez.
- Classify the ending: a lucra ends in -a, so it is a 1st-conjugation verb; a hotărî ends in -î, so it is in the 4th group.
- Read the present forms shown by the dictionary. For a lucra, record lucrez (1st person singular) and lucrează (3rd person singular).
- Add more forms when the verb is common or the pattern is easy to misunderstand. A full six-form record is safest for an irregular verb.
The infinitive ending tells you where to start looking. It does not replace the dictionary entry. The dedicated present-tense group articles give the detailed endings and stem patterns after you know the group.
What does the infinitive ending predict?
It predicts the traditional conjugation group and often gives a first idea of the endings used in simple forms, but it does not predict every present stem, every vowel change, or whether a verb is irregular.
| Infinitive | Group | 1st person singular | 3rd person singular | The useful warning |
|---|---|---|---|---|
| a cânta | -a | cânt | cântă | A regular -a verb without a present stem extension. |
| a lucra | -a | lucrez | lucrează | Another -a verb uses -ez-/-eaz- in several present forms. |
| a vedea | -ea | văd | vede | The present stem is not simply the visible infinitive minus -a. |
| a merge | -e | merg | merge | A common verb may have a less transparent stem relationship. |
| a dormi | -i | dorm | doarme | A vowel alternation can appear inside the stem. |
| a citi | -i | citesc | citește | Some -i verbs use the -esc-/-ește- extension in the present. |
What are -ez- and -esc- doing?
These are common present-tense stem extensions, not two extra conjugation groups. Some verbs use them in several singular forms and in 3rd person plural, while other forms show the shorter stem: a lucra has lucrez, lucrezi, lucrează but lucrăm, lucrați; a citi has citesc, citești, citește but citim, citiți. Learn the extension with the verb, and check spelling such as citește rather than applying -esc mechanically to every person.
The 4th group also contains verbs in -î with related present extensions: a hotărî has hotărăsc and hotărăște. This is only an overview; use the dedicated present-tense -i/-î article for a complete paradigm and the main stem changes.
Which verbs should you learn as irregular?
Learn a verb as irregular or stem-changing whenever its present forms cannot be safely generated from the infinitive ending alone. High-frequency verbs deserve their own small paradigm even when their dictionary ending places them in a group.
| Verb | Group label | Present forms worth recording | Learner decision |
|---|---|---|---|
| a fi (to be) | -i (4th); irregular paradigm | sunt, ești, este, suntem, sunteți, sunt | Memorize all six forms as a set. |
| a putea (to be able to) | -ea | pot, poți, poate, putem, puteți, pot | Keep the group label, but do not generate its stem from putea. |
| a lua (to take) | -a | iau, iei, ia, luăm, luați, iau | Record the present forms because the stem changes. |
| a hotărî (to decide) | -î | hotărăsc, hotărăște | Record at least the 1st and 3rd person singular forms and check the rest. |
How should you record a new verb?
Write the infinitive with a, its group ending, and enough present forms to expose the real stem. For a regular-looking verb, start with 1st and 3rd person singular; for a frequent or irregular verb, write all six persons.
| Notebook entry | Why it helps |
|---|---|
| a lucra — -a — lucrez, lucrează; lucrăm, lucrați | Shows the -ez- extension and the shorter plural stem. |
| a citi — -i — citesc, citește; citim, citiți | Shows the -esc- extension and its spelling in 3rd person singular. |
| a fi — -i (4th), irregular — sunt, ești, este, suntem, sunteți, sunt | Keeps the traditional group label while preventing you from trying to build its irregular paradigm from the infinitive ending. |
| a vedea — -ea — văd, vede | Keeps the dictionary group and the actual present stem together. |
Mistakes to avoid
- Do not assume that all -a verbs share one present pattern: compare a cânta — cânt with a lucra — lucrez.
- Do not treat the group number as a person ending. It names a traditional family; the actual form still depends on the verb and the tense.
- Do not omit the infinitive particle when making a dictionary card: write a merge, not only merge.
- Do not use -ez- or -esc- as a universal formula. Confirm which forms actually contain the extension.
Which pair contains two 4th-conjugation verbs?
- a cânta, a lucra
- a vedea, a putea
- a merge, a face
- a dormi, a hotărî
The 4th group contains infinitives ending in -i or -î, so a dormi and a hotărî belong together.
Which is the most useful first dictionary note for a lucra?
- a lucra — lucr
- a lucra — lucrez, lucrează
- a lucra — lucra, lucrați only
- a lucra — lucrat
The infinitive gives the -a group, while lucrez and lucrează reveal the present stem extension that learners need to remember.
What can the ending of the infinitive safely tell you?
- The exact six present forms
- Whether the verb is always regular
- The verb's traditional conjugation group
- The verb's English translation
The final -a, -ea, -e, or -i/-î classifies the infinitive. It is a starting point, not a complete present-tense prediction.
Choose the standard present form: În fiecare dimineață, eu ___ la birou. (Every morning, I work at the office.)
- lucrez
- lucresc
- lucră
- lucrați
The subject eu needs the 1st person singular of a lucra: lucrez. The form lucrați is 2nd person plural.
What is the safest present-tense note for the common verb a fi?
- a fi — -i, so add a regular -i pattern
- a fi — sunt, ești, este, suntem, sunteți, sunt
- a fi — fiu, fii, fie, fim, fiți, fiu
- a fi — am fost, ai fost, a fost
Although a fi ends in -i, its present indicative is irregular. Recording all six forms prevents a regular-group guess.