English has many ways to talk about the past, but they sort into three, and Spanish has exactly three forms to match.
Note that English would can point at the past, not the future: I would go to the cinema every day when I was young. That belongs to the line.
Unlike the two futures, here you take the ending off first, then add. The -ar key sound is -aba, and it covers I, he, she, it and formal you together.
hablar → hablaba
The accent stays on the -aba throughout, including the "we" form.
Esperaba · Te esperaba · Lo esperaba · La esperaba · Lo esperábamos · Los esperábamos · Intentaba · Intentaban encontrarlo
Worth stating plainly: comido, bailado and the rest stay the same for every person. All the work happens in haber.
-ar → -ado · -er / -ir → -ido
He comido · He hablado · He bailado · Han bailado · Hemos bailado
Once you stop translating been able and just ask for "poder after haber", these build easily.
He podido comer · No he podido comer · Habría salido · Habría podido salir · No habría podido salir
A reminder that lo and la also cover formal you, which matters when the sentence has a person in it.
Los esperábamos can be we were waiting for you guys or for them.
Both can attach to the end of the "to" form, written as one word, personal one first.
Intentaban encontrármelo (they were trying to find me it)
If you want to emphasise the person instead, you can use the preposition the way English does.
Intentaban encontrarlo para mí