We stayed in touch for many decades, but I lost track of him several years ago and don't even know if he's still alive.

在以后的几十年中，我们始终保持联络，但几年前我和他失去了联系，不知道他现在是否还活着。

youdao

We had stayed in touch.

我们还保持着联系。

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We stayed in touch, and I eventually travelled to Bangladesh with her to meet her family.

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We stayed in touch before he died and over the years I have tried to bring all his lessons with me.

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We stayed in touch for years.

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