DOUBLING PART TWO

These are the rules:

When the verb ends in consonant + vowel + consonant, you have to double the last consonant  and then add "ed" to make the Past Simple.

 If you have a verb with more than one syllable, you only double the consonant if the last syllable is stressed.

In British English the final "l" is doubled, even if the last syllable is not stressed.

If the last letter is "x", you do not double it (because an "x" is in fact two consonant "ks".

If the last letter is "c", you write "ck" instead of "cc".

Of course these rules only apply to regular verbs.

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OK. Some examples:

Doubling of final consonant: one syllable verbs

to plan     - planned (planifier)

to bin       - binned   (mettre dans la poubelle)

to dub       - dubbed (doubler un film)

to rub        - rubbed   (frotter)

to slip         - slipped   (glisser)

to stop       - stopped   (arrêter)

to rot          - rotted (pourrir)

to knit         -  knitted  (tricoter)

to bar         - barred  (barrer)

don't double if the verb finishes with an "x" or "w"

to fix           - fixed   (réparer)

to mix         - mixed (mélanger)

to en'dow    - endowed (doter)

to bow        - bowed (saluer)

if the verb finishes with a "c", past simple is "ck"

to picnic     - picnicked  (pique-niquer)

double the consonant, if more than one syllable, and stress on the last syllable

to re'fer      - referred (faire référence à)

to pre'fer    - preferred (préférer)

to oc'cur     - occurred   (arriver)

to e'mit       - emitted   (emettre)

In British English, always double the last "l"

to 'travel      - travelled (voyager) BE

to 'label       - labelled  (étiqueter)            

if the stress is not on the last syllable, don't double

to 'travel      -   traveled     (voyager)  AE

to 'benefit    - benefited   (bénéficier)

to de'velop  - developed    (développer)

exceptions (stress not on the last syllable, but double anyway) 

to 'worship - worshipped  (vénérer)

to 'kidnap   - kidnapped  (kidnapper)