Question:
The Biur Halacha in 109 is mesupak about a case where one's Shmoneh Esrei is longer and he will miss Kedusha if he starts together with the congregation. My question is: If I start Krias Shema or Birchos Krias Shema with the rest of the kehilla, but they go so fast that I will start Shmoneh Esrei after they start, am I considered like the case of the gemara "one who comes to shul and finds them davening Shmoneh Esrei" or am I like the Biur Halacha's case because I started together with them and they just sped ahead of me?
Answer:
Hello,
You can rely on the fact hat your davening Shemona Esrei at this time is a part of the seder of davening, a stat Shemona Esrei when you get there.
Best wishes
Sources:
Poskim
