Question

@Vincent-Lyon.Fr
Dis-moi s'il te plaît, même s'il est trop compliqué :)
http://screencast.com/t/lCWfTii5nET

Answer 1

What are the French verbal forms : envoierois , appréhendois ?

Well, first of all, they are outdated or reformed French spellings. They can be found in fac-similes of old manuscripts of printed text. They can be found in modern language when you want to insist on the 'quaint' look of a sentence.
Same can be found in English if you use 'thereof', 'herewith', 'thou hast', 'he goeth'...

Secondly, all verbs with such endings in '-ois' or '-oit' have been modernised to '-ais' or '-ait' in the 'imparfait' and in the 'conditionnel présent'.
Even when they were spelled '-ois/t', these endings were pronounced '-ais/t' anyway. This is probably why their spelling was changed.

From 1650 to 1835, French spelling underwent reforms on average every 12 years. Most of them consisted in getting rid of silent letters in the middle of words. These silent letters often remained when they belonged to the final syllable. Hence 'vingt' and 'doigt', that were not re-spelled 'vint' and 'doit'. But 'laict' and 'nuict' were respelled 'lait' and 'nuit'. (twenty-finger-milk-night)

From the middle of the 19th century onwards, spelling became a marker of social or intellectual status and as such was fixed and taught forbidding new reforms.
Some people today are advocating a new reform but they are facing extreme resistance by conservative people as well as ordinary people who do not have any idea of how French spelling evolved in the past.

Finally, 'envoyer' is a verb that used to have 2 spellings in the future and 'conditionnel' with
'j'envoierai' and 'j'enverrai'. Today, only 'j'enverrai' remains.
This is why 'je vous envoierois' would be spelled today : 'je vous enverrais'

Only few verbs have retained 2 roots. You probably know 'to sit 'down',
's'asseoir' with 'je m'assiérai' and 'je m'assoierai'. (before 1990)
's'assoir' with 'je m'assiérai' and 'je m'assoirai'. (post 1990)

Answer 2

Thanks a million :)