Here is a list of some elisions that may occur in informal speech. You are not expected to apply these in your own speech.
Elision of pre-consonantal /v/ is common in the weak forms of of and have, as in (I can take) care of myself /ˈkɛr ə maɪˈsɛlf/, (in my) neck of the woods /ˈnɛk ə ðə ˈwʊdz/, (You) should have seen (her) /ˈʃʊd ə ˈsiːn/. In informal writing, spellings like kinda, shoulda for kind of, should have are sometimes used to reflect this type of elision.
care of myself
neck of the woods
should have seen
In rapid styles, /ð/ may be realized as a dental nasal [n̪] after /m/, as in from there, from this: /frəmˈn̪ɛr, frəmˈn̪ɪs/.
Elision of /f/ is common in fifth, twelfth.
Before unstressed me, the verbs let, give lose their final consonant in informal styles: /lɛmi, gɪmi/.
In very rapid styles, flap deletion may occur, as in better /bɛər/, greatest /ˈgreɪəst/.
Finally, note that /k/ is normally elided in asked and /g/ frequently in recognize.