In Verbs^x, helping verbs^x

Nope, "let" is a weird verb because it can take over or imply a kind of modal meaning in special cases, just a bit like the common usual Modal helping verbs which are always followed by an infinitive.

Right, you only have to "inflect" one verb in a simple tense (past or present). When there is also a helping verb in the sentence, then this one is inflected while the main verb remains unchanged. He has money. -> "has" is the only verb, so it has to be flected to show which tense or person is...

The subject is "Beads or balls". The predicate is "may be moved" and consists of 3 verbs: The modal helping verb "may" which shows the modus (allowance) of the full verb "move" that is here in its passive voice of the infinitive. [to move (active) -> to be moved (passive)].

Hello ssittoesl! >>eg. go went gone. In Chinese, you supplement the word "GO" with additional word if you want to say someone "has gone" etc.. The integrity of the word "GO" is preserved. Hehe, interesting you just picked out a very irregular verb of the English language! The reason why "to...

As far as I know, there are these 13 tenses: a) Past Perfect Progressive ........................had been + present participle b) Past Perfect ..........................................had + past participle c) Past Progressive ...................................was/were + present participle d)...