il m'a fallu beaucoup de temps pour

it took me a long time to

→ il
phrase Rare #39,650
it took me a long time to Used with an infinitive to say that something required a lot of time. The phrase literally refers to a lot of time being necessary for the speaker.
FR: Il m'a fallu beaucoup de temps pour apprendre le français.
EN: It took me a long time to learn French.

Il m'a fallu beaucoup de temps pour le faire.

It took me a long time to do it.

Il m'a fallu beaucoup de temps pour m'en remettre.

It took me a long time to get over it.

Il m'a fallu beaucoup de temps pour me débarrasser de toutes ces fourmis.

It took me a long time to get rid of all those ants.

Il m'a fallu beaucoup de temps pour comprendre cela.

It took me a long time to understand that.

Il m'a fallu beaucoup de temps pour écrire ce livre.

It took me a long time to write this book.