Grammar

Affirmative	Negative	Interrogative
I worked You worked He worked She worked It worked We worked You worked They worked	I did not work You did not work He did not work She did not work It did not work We did not work You did not work They did not work	Did I work? Did you work? Did he work? Did she work? Did it work? Did we work? Did you work? Did they work?

General rule

Infinitive without 'to' + ED

to work à I worked

Verbs ending in E or IE

Infinitive without 'to' + D

to die à He died

Verbs ending in Y, preceded by a consonant

The Y changes into IED

to try à She tried

Verbs ending in L, preceded by a short vowel

The L is doubled + ED

to travel à We travelled

Verbs ending in IC

The C is followed by K + ED

to panic à They panicked

Verbs of one syllable, ending in a single consonant, preceded by a short vowel

The end consonant is doubled + ED

to plan à You planned

EXAMPLE

Irregular verbs