General:
* Love: adore, cherish, care for, appreciate, value, support
* Share: confide in, empathize with, relate to, understand, connect with, communicate with, collaborate with
* Help: assist, guide, encourage, protect, defend, advocate for, stand up for
* Fight: argue with, bicker with, disagree with, tease, annoy, compete with
* Grow: evolve with, mature together, learn from, inspire, influence
Specific actions:
* Play: laugh with, joke with, have fun with, giggle with
* Travel: explore with, adventure with, vacation with
* Create: craft with, paint with, sing with, write with
* Remember: reminisce with, share memories with, reminisce about
* Comfort: console, soothe, empathize with
More nuanced verbs:
* Embrace: accept, acknowledge, celebrate
* Challenge: push, provoke, motivate
* Inspire: motivate, uplift, encourage
* Respect: admire, value, appreciate
* Forgive: reconcile, understand, accept
The best verb choice depends on the specific relationship and the context of the sentence. You can also use different verb tenses to emphasize the time frame of the action:
* Past: They shared a childhood bedroom.
* Present: They support each other through thick and thin.
* Future: They will always be sisters.