Full Arabic — click to listen
inna
Indeed
ACC – accusative particle inna
Root Link: ا ن ن
in
P – preposition
Root Link: ف ى
l-samāwāti
the heavens
DET – determiner prefix al + N – genitive feminine plural noun
Root Link: س م و
wal-arḍi
and the earth
CONJ – prefixed conjunction wa (and) + DET – determiner prefix al + N – genitive feminine noun 
Root Link: ا ر ض
laāyātin
surely (are) Signs
EMPH – emphatic prefix lām + N – genitive feminine plural indefinite noun
Root Link: ا ى ا
lil'mu'minīna
for the believers
P – prefixed preposition lām + DET – determiner prefix al + N – genitive masculine plural (form IV) active participle
Root Link: ا م ن

Acknowledgements:

Single-Word Audio has been made possible through software provided by Arabic NLP

James Ada's concordance work; his research can be found at www.organizedQuran.com
Note: James is now a member of the IslamAwakened Continuity Board