Notes on Irregular Verbs:

 

Irregular verbs do not follow the rules of any of the four conjugations; therefore they are called irregular. These verbs need to be memorized in all of their tense conjugations and principle parts.

 

Sum, esse, fui, futurus to be

Imperative: es, este

Present Tense

 

Singular

Plural

1

sum

sumus

2

es

estis

3

est

sunt

Imperfect Tense

 

Singular

Plural

1

eram

eramus

2

eras

eratis

3

erat

erant

 

Possum, posse, potui to be able, can

Imperative: ~

Present Tense

 

Singular

Plural

1

possum

possumus

2

potes

potestis

3

potest

possunt

Imperfect Tense

 

Singular

Plural

1

poteram

poteramus

2

poteras

poteratis

3

poterat

poterant

 

Volo, velle, volui to wish, want, be willing

Imperative: ~

Present Tense

 

Singular

Plural

1

volo

volumus

2

vis

vultis

3

vult

volunt

Imperfect Tense

 

Singular

Plural

1

volebam

volebamus

2

volebas

volebatis

3

volebat

volebant

 

Nolo, nolle, nolui to be unwilling, not wish

Imperative: noli, nolite

Present Tense

 

Singular

Plural

1

Nolo

Nolumus

2

Non vis

Non vultis

3

Non vult

nolunt

Imperfect Tense

 

Singular

Plural

1

Nolebam

Nolebamus

2

Nolebas

Nolebatis

3

nolebant

nolebant

 

Fero, ferre, tuli to bring, carry

Imperative: fer, ferte

Present Tense

 

Singular

Plural

1

Fero

Ferimus

2

Fers

Fertis

3

fert

ferunt

Imperfect Tense

 

Singular

Plural

1

Ferebam

Ferebamus

2

Ferebas

Ferebatis

3

ferebat

ferebant

 

Eo, ire, ivi/ii, itum to go

Imperative: i, ite

Present Tense

 

Singular

Plural

1

Eo

imus

2

Is

istis

3

it

eunt

Imperfect Tense

 

Singular

Plural

1

Ibam

ibamus

2

Ibas

ibatis

3

ibat

ibant