/l/ and /ð/ are both

voiced

Info: /l/ is the only lateral approximant, not classified with any of the other consonants

/s/ and /ʃ/ are both

unvoiced fricatives

/d/ and /g/ are both

voiced stops

/ŋ/ and /n/ are both

voiced nasals

Info: All nasals are voiced

/ʃ/ and /θ/ are both

voiceless fricatives

/m/ and /w/ are both

voiced bilabials

Info: /w/ is also velar; it is the only English phoneme with a double articulation

/v/ and /ð/ are both

voiced fricatives

/f/ and /h/ are both

voiceless fricatives

/d/ and /g/ are both

voiced stops

/s/ and /ʃ/ are both

voiceless fricatives

/r/ and /j/ are both

voiced approximants

/ʧ/ and /ʤ/ are both

palato-alveolar affricates

/ʃ/ and /θ/ are both

voiceless fricatives

/g/ and /ŋ/ are both

voiced velars

/ŋ/ and /n/ are both

voiced nasals nasals

Info: All nasals are voiced

/h/ and /s/ are both

voiceless fricatives