However,
Therefore
Conectar ideias num texto — de forma formal.
🔑 A grande sacada
Pra ligar frases num texto (mais formal que but/so): however (porém), therefore (portanto), moreover (além disso). Vêm no começo da frase, seguidos de vírgula.
// na prática
It was expensive. However, we bought it.
Era caro. Mesmo assim, compramos.
She studied hard. Therefore, she passed.
Ela estudou muito. Portanto, passou.
On the other hand, it's cheaper.
Por outro lado, é mais barato.
⚠️ Erros comuns do brasileiro
✗ However he tried, he failed. (isso é "although")
✓ He tried. However, he failed.
✗ But however, it's expensive.
✓ However, it's expensive. (um conector só)