Melhor turma

Irregular Verbs:

buy - bought
come - came
cut - cut
do - did
drink - drank
drive - drove
eat - ate
get - got
go - went 
have - had
make - made
put - put
read - read
say - said
see - saw
take - took
think - tought
write - wrote
speak - spoke


Regular Verbs:

1- Adicionamos d em verbos terminados em e.

live - lived
agree - agreed
change - changed

2- Tiramos o y e adicionamos o ied aos verbos terminados em consoante+y

cry - cried
study - studied
carry - carried

3 - Adicionamos ed a verbos terminados em vogal+y

play - played
stay - stayed

4 - Se o verbo terminar em consoante/vogal/consoante a última letra se repete e acrescentamos ed  (apenas se a última sílaba for tônica)

stop - stopped
occur - occurred
patrol - patrolled

5 - Todos os outros verbos regulares : adicionamos ed

work - worked
clean - cleaned
travel - traveled


Interrogative Form:

Usamos o did antes do sujeito para transformar a frase em interrogativa. 
Quando usamos did o verbo volta para o infinitivo

Did i wash the car?


Negative Form:

O verbo volta para o infinitivo
Usa-se o didn't (did not)

I didn't drink the soda


Affirmative Form:

Não se usa o did
Os verbos vão para o passado

I went to the school (passado de go).