Syntax: This segment uses imperative mood ('Let it rain'), complex sentences with subordinate clauses ('When the clouds come...'), and metaphorical language. 'Come on down with the Dow Jones' is an inverted structure for poetic effect.
Morphology: Verb forms include base form ('Let'), present simple ('come'), and present perfect continuous implied in 'hydroplane' (to move over a surface on a film of water, used metaphorically). 'Gone' is used as an adjective complement.

Syntax: Uses second-person address ('You had my heart'), future tense ('you'll still be'), and causal conjunction ('cause'). The structure 'And that's when you need me there' uses a cleft sentence for emphasis.
Morphology: Contractions: 'we'll' (we will), 'you'll' (you will). Past simple ('had'), modal verbs ('can', 'will'), comparative adjective ('shiny'). 'World apart' is a noun phrase functioning as a complement.

Syntax: Uses adverbial clauses of time ('When the sun shines', 'Now that it's raining'), reported speech ('Told you', 'Said'), and parallel structure for emphasis. 'Stick it out' is a phrasal verb.
Morphology: Future tense with 'will' ('we'll shine'), present perfect ('have'), modal verb 'can' for permission/ability. 'Took' is irregular past simple of 'take'. The contraction 'I'm' stands for 'I am' before the verb phrase 'stick it out'.

Syntax: Future tense with 'will' for prediction, present perfect for hypothetical future ('has dealt'), conditional structure ('If the hand is hard...'). 'Here for infinity' uses prepositional phrase as complement.
Morphology: Abstract nouns: 'entity', 'infinity'. Possessive determiners: 'my', 'its' (note the incorrect 'it's' in lyrics should be 'its'). Past participle 'dealt' (irregular). Future simple 'we'll mend'.

Syntax: Imperative mood ('come'), declarative sentences with modals ('can', 'will'), and the causative 'let' structure ('let the rain pour'). 'There's no distance' is an existential 'there' construction.
Morphology: Phrasal verb 'come into'. Contractions: 'don't' (do not), 'it's' (it is). Base form verbs after modals ('be', 'pour'). Present simple for state ('is').