Portuguese verb

Conjugation of ser

The Portuguese verb ser means "to be (permanent)". Below are its 7 tenses as tables, with the irregular forms marked, 4 example sentences and answers to 3 common questions. Press play next to a present tense form or an example to hear it.

Meaning
to be (permanent)
Type
Irregular -er verb
Gerund
sendo
Past participle
sido
Quick answer

The present tense of ser is eu sou, tu és, ele/ela é, nós somos, vós sois, eles/elas são. It is irregular: all 6 present forms break the regular -er pattern. The tables below cover 7 tenses, from the present to the imperative. Every present form and 4 example sentences have a listen button.

Present tense of ser

Forms in orange break the regular -er pattern.

Present Presente
eu sou (irregular)
tu és (irregular)
ele/ela é (irregular)
nós somos (irregular)
vós sois (irregular)
eles/elas são (irregular)

More tenses of ser

Simple past Pretérito perfeito
eu fui (irregular)
tu foste (irregular)
ele/ela foi (irregular)
nós fomos (irregular)
vós fostes (irregular)
eles/elas foram (irregular)
Imperfect Pretérito imperfeito
eu era (irregular)
tu eras (irregular)
ele/ela era (irregular)
nós éramos (irregular)
vós éreis (irregular)
eles/elas eram (irregular)
Future Futuro
eu serei
tu serás
ele/ela será
nós seremos
vós sereis
eles/elas serão
Conditional Condicional
eu seria
tu serias
ele/ela seria
nós seríamos
vós seríeis
eles/elas seriam
Present subjunctive Presente do subjuntivo
que eu seja (irregular)
que tu sejas (irregular)
que ele/ela seja (irregular)
que nós sejamos (irregular)
que vós sejais (irregular)
que eles/elas sejam (irregular)
Imperative Imperativo
tu sê (irregular)
você seja (irregular)
nós sejamos (irregular)
vós sede (irregular)
vocês sejam (irregular)

Notes on ser

Ser is irregular. Its present forms include sou, és, é, somos, sois, and são, while its simple past uses fui, foste, foi, fomos, fostes, and foram. The imperfect and present subjunctive also have irregular forms such as era and seja.

Meet ser in real Portuguese books

Lingo7 is an app for reading books in Portuguese with a translation under every sentence and audio, so the forms in these tables come back in context.

Example sentences with ser

  • Eu sou estudante de português. I am a student of Portuguese.
  • Ontem fomos muito felizes juntos. Yesterday we were very happy together.
  • Quando era criança, vivia aqui. When I was a child, I lived here.
  • Amanhã seremos muito mais cuidadosos. Tomorrow we will be much more careful.

Frequently asked questions

Is ser a regular Portuguese verb?

No. Ser is irregular.

What are the present tense forms of ser?

The forms are sou, és, é, somos, sois, and são.

What are the past participle and gerund of ser?

The past participle is sido and the gerund is sendo.