Conjugate venir/tenir and derivatives in the historic past in French (Le Passé Simple)

Look at these sentences with venir/tenir in le Passé Simple:

To conjugate venir, tenir and derivatives in le Passé Simple, here is what to do:

Keep only the first letter 'v' or 't' (without -ENIR) + endings: -ins, -ins, -int, -înmes, -întes, -inrent

Note that when using derivatives with prefixes, like devenir or retenir, you take off -ENIR as well, and therefore will keep dev- or ret-.