Some – du (m) or de l' in front of a vowel or h, de la (f) or de l' in front of a vowel or h, des (plural m or f)
(Pronounced do, de-l, der-la, de-l and day)
To remember that Some is pronounced do, de-l, der-la, and day (du, de l', de la or des) in French, use the following mnemonic:
Some people say their wedding day (des) is the happiest day of their lives. But do (du) remember to turn up on time. Remember no delays (de l') and tell her (del a) you love her.

Examples of du, de l', de la or des (some) in a sentence
Il achète du pain.
(He is buying some bread.)
Il y a de la glace dans le congélateur.
(There is some ice cream in the freezer.)
Il y a des nuages dans le ciel.
(There are some clouds in the sky.)