Are these sentences gramatically correct?

[LiamK]

<p>When i was walking, i waved to Bobby.</p>

<p>and</p>

<p>When i walk outside, i wave to Bobby.</p>

<p>Are they gramatically correct?</p>

[HighlandMom]

<p>Yes. The verbs agree in tense.</p>

[CR7_ManUtd]

<p>Yep ,completely correct</p>

[4.0]

<p>Yes…</p>