我很肯定湯姆昨天來過這裡。 - Zhictionary

Zhictionary

我很肯定湯姆昨天來過這裡。

I'm sure Tom came here yesterday.

Source: Tatoeba

Sentence Composition

I
me
my

very; quite
(also, often used before an adjective without intensifying its meaning, i.e. as a meaningless syntactic element)

to be certain; to be positive
assuredly; definitely
to give recognition; to affirm
affirmative (answer)

to come
(used as a substitute for a more specific verb)
hither (directional complement for motion toward the speaker, as in 回来 huílai)
ever since (as in 自古以来 zìgǔyǐlái)
for the past (amount of time)
(prefix) the coming ...; the next ... (as in 来世 láishì)
(between two verbs) in order to
(after a round number) approximately
(used after 得 dé to indicate possibility, as in 谈得来 tándelái, or after 不 bù to indicate impossibility, as in 吃不来 chībulái)

to cross
to go over
to pass (time)
to celebrate (a holiday)
to live
to get along
excessively
too-

(experienced action marker)