I have to shave.
Amar dari kamate hobe.
OR just say:
Amar shave korte hobe.
It has been raining all week.
Shara shoptah brishti porechhe.
I almost fell in the water.
Ami prae panite pore gechhilam.
The dog almost bit me.
Kukurta prae amake kamor diyechhilo.
I almost got home *when* it started pouring down.
Ami prae bashae pouchhe gechhilam jokhon musholdhare brishti shuru holo.