Amser Gorffennol - endings to the stems

How would you write the following in the past tense. Add the correct ending to the stem of the verb. E.g.

I 'chwarae' = Chwaraeais i

I 'darllen' = __________ _

They 'nofi' = ______ ___

We 'Yf' = ____ __

She 'ysgrifenn' = ____________ __

I 'dysg' = _______ _

You** 'darllen' = __________ ___

Sarah 'bwyt' = _______ _____

You* 'Cysg' = ________ __

I 'Edrych' = _________ _

We 'Rhed' = ______ __