en
Function of en
en is a subject particle, just like li and e are verb and object particles respectively. However, with en, the first subject is always unmarked.
mi en sina li pali e pan = We (I and you) bake bread.
jan en soweli li tawa lon ma kasi = Someone is walking their dog in the woods.
en is not and.
In Toki Pona, and is implied any time there is repetition. To say and in the subject, verb, or object, you repeat the corresponding particle.
ona li kama li tawa = He arrives and leaves.
ona li lukin e ma e sewi = She sees the land and the sky.
mi en sina li pali e pan = We (I and you) bake bread.
To say and in a prepositional phrase, you repeat the preposition.
mi pali e tomo kepeken kiwen kasi kepeken kiwen ko loje = We build the house with wood and red bricks.
To say and between adjectives/adverbs, you just list the words.
tomo suli laso = big and green house
len loje jelo = red and yellow shirt (you might want to specify that the colors do not combine by saying this as a complete sentence, though)