Simple Past: Regular Verbs. APRENDER INGLES GRATIS.

The simple past is used to describe an action that occurred and was completed in the past.
For regular verbs, the simple past is formed by adding -ed to the base form of the verb (infinitive without to).

base form	+ ed =	simple past
walk		walked
push		pushed
greet		greeted
cover		covered

The simple past tense of all regular verbs is the same for all persons.

	singular				plural
1st per	I	worked	yesterday.		We	worked	yesterday.
2nd per	You	worked	yesterday.		You	worked	yesterday.
3rd per	He, She, It	worked	yesterday.		They	worked	yesterday.

For regular verbs ending in the vowel -e, add -d.

base form	simple past
hate	hated
seize	seized
hope	hoped
assume	assumed
tie	tied
free	freed

For the very few English verbs that end in a vowel other than -e, add -ed.

base form	simple past
ski	skied
echo	echoed

Exceptions: The verbs DO and GO are irregular: see below.
 
For regular verbs that end in a vowel+y, add -ed.

base form	simple past
play	played
decay	decayed
survey	surveyed
enjoy	enjoyed

Exceptions: The verbs SAY and BUY are irregular: see below.



For regular verbs that end in a consonant+y, change the -y to -i and add -ed.

base form	simple past
cry	cried
dirty	dirtied
ready	readied
magnify	magnified

Exception: The verb FLY is irregular: see below.

For regular verbs ending in short vowel sounds followed by a consonant, double the final consonant before adding -ed.

base form	simple past
dam	dammed
beg	begged
sin	sinned
stop	stopped
rub	rubbed

When the regular verb has more than one syllable, in American English the final consonant is doubled when the syllable stress is on the final syllable.

base form	incorrect	simple past
defer	defered	deferred
regret	regreted	regretted
reship	reshiped	reshipped
compel	compeled	compelled

In these words, the syllable stress is not on the final syllable, so the consonant is not doubled.

base form	simple past	incorrect
orbit	orbited	orbitted
listen	listened	listenned
travel	traveled	travelled
consider	considered	considerred

Here are examples with regular verbs in the simple past.

simple present	simple past
I walk to school.	I walked to school.
She works downtown.	She worked downtown.
They help on Tuesday.	They helped on Tuesday.
He asks a lot of questions.	He asked a lot of questions.

Irregular verbs do not form the past tense by adding -ed. Irregular verbs form the past tense by a change in spelling.

base form	simple past
buy	bought
do	did
fly	flew
forget	forgot
light	lit
go	went
say	said