Examples of conjugation

Indo-European languages usually inflect verbs for several grammatical categories in complex paradigms, although some, like English, have simplified verb conjugation to a large extent. Below is the conjugation of the verb to be in the present tense, indicative mood, active voice, in English, German, Icelandic, Latvian, Bulgarian, Polish, Hindi, Persian, Latin, French, Italian, Spanish, Albanian, Ancient Attic Greek and Modern Greek. This is usually the most irregular verb. You may notice the similarities in corresponding verb forms. For simplicity, the personal pronouns have been omitted, and only the conjugated verb is shown.

"To be" in several Indo-European languages Branch Germanic Italic
Person
&
number English German Dutch Icelandic Latin Italian French Spanish
to be sein zijn vera esse essere être ser
1st singular am bin ben er sum sono suis soy
2nd singular are/art1 bist ben(t)/zijt ert es sei es eres
3rd singular is ist is er est è est es
1st plural are sind zijn erum sumus siamo sommes somos
2nd plural are seid zijn/zijt eruð estis siete êtes sois
3rd plural are sind zijn eru sunt sono sont son
Branch Greek Albanian Slavic Baltic Indo-Iranian
Person
&
number Ancient (Attic)1 Modern2 Polish Bulgarian3 Latvian Persian Hindi
eînai none none
(ptc: qenë) być (biti)1 būt budan hona
1st singular eimí íme jam jestem săm esmu hastam hoon
2nd singular eî íse je jesteś si esi hasti hai
3rd singular estí íne është/asht4 jest e ir hast hai
1st plural esmén ímaste jemi jesteśmy sme esam hastim hain
2nd plural esté íste jeni jesteście ste esat hastid ho
3rd plural eisí íne janë są să ir hastand hain

1. Archaic, no usage in modern language.
2.
3. The verbs have been trasliterated, to facilitate the comparison with other languages. In the Greek alphabet, they are written as follows, from top to bottom: εἶναι, εἰμί, εἶ, ἐστί, ἐσμέν, ἐστέ, εἰσί.
4. The verbs have been trasliterated, to facilitate the comparison with other languages. In the Greek alphabet, they are written as follows, from top to bottom: είμαι, είσαι, είναι, είμαστε, είστε, είναι.
5. The verbs have been trasliterated, to facilitate the comparison with other languages. In the Cyrillic alphabet, they are written as follows, from top to bottom: бити, съм, си, е, сме, сте, са.
6. In the Tosk and Geg dialects, respectively.