gerund vs participle with having+past participle
114784
Gerunds:Having+past participle and being+past participle
105201
" could " vs. " could have "
149189
"I have been 'verb-ing'" vs. "I had been 'verb-ing'"
63125
"...would have trouble imagining...": Is this present participle or gerund?
12314
Gerund preceded by a genitive?
154084
Having done something,... vs Doing something,
156665
progressive forms: participle or gerund?
67523
Start + Gerund vs Start + Infinitive: is there a subtle tense difference?
100002
Past Simple vs. Present Perfect
63386
American dialects: Replacing the past-perfect participle with the simple-past form
28671
Is it correct to use two present participles sequentially?
99626
Present perfect or past simple
73018
To tell about a guess about a case in the past, why use "would+have+past participle" instead of "must+have+past participle?
85473
Past participle used as a noun?
99083
"Have had" versus "had"
90991
Adverbs + Present Perfect
139928
Verbs vs. gerunds vs. something else?