I would

I would is a phrase typically contracted to I'd, expressing conditional willingness, hypothetical action, or polite preference.

It sets up what someone would do under certain circumstances: I would help if I could, I would have called, but my phone died.

In casual speech, I would often signals disagreement or exasperation: I would forget my wallet on the one day I need cash.

It can also express habitual past action: When I was young, I would walk to school every morning.