The verb courir (to run) is irregular in Présent indicatif, in that it doesn't follow the regular -IR verbs conjugation.
COURIR (to run)
Listen to these examples:
Conjugate regular -ir verbs in Le Présent (present tense)
Conjugate partir, sortir and other -tir verbs in Le Présent (present tense)
Conjugate dormir and other -mir verbs in Le Présent (present tense)
Conjugate servir and other -vir verbs in Le Présent (present tense)
Examples and resources
Q&A Forum 1 question, 4 answers
Theresa court dans les champs de blé
I think this sentence requires an adverb to make it meaningful: souvent.jamais etc. Otherwise it sounds a bit odd, don't you think, like I wash my face ? The present tense denotes repeated or habitual actions, so there should be some kind of time reference, when, how often, , etc.