關於English Grammar 問題一問

It's ok in the tense but not ok in the article

you should put an article in front of the noun, 'watches', e.g.(a,an,the...)

I have stolen the/some watches.

HOPE I CAN HELP YOU ^_^

指往個抽屜內既錶講: You would use "the watches" as subject and simple past as the tense.

These watches were stolen by me.

(Jenkin is right to use demonstrative pronoun)

2015-01-03 02:16:07 補充：
如果指往自己講:

I stole those watches.
It was me who stole the watches.

雖然你的故事邏輯有點問題...
英文要講偷錶的人是你"I have stolen..."，但你又話唔知那些錶"你"幾時偷或先後次序...
不過這些細節對你總括來講指住這些錶話係"全是你偷的"的意思是沒有關係的。

唯一挑剔你的句子是應該要修飾那些watches...

I have stolen these watches.

因為明顯你是指住這些watches.

我小學時老師教:指住自己前面的眾數便用these，指住遠方的眾數便要用those.

點解你唔講

The stolen watch is in the drawer.

呢？

如果你擔心某個講法唔正確，咁不如你用個有信心既講法講囉。