Syntax: The structure "This is what you came for" is a declarative sentence. 'This' is a demonstrative pronoun referring to the situation. 'Is' is the linking verb. 'What you came for' is a noun clause acting as the subject complement. Within this clause, 'what' is a relative pronoun, 'you' is the subject, 'came' is the past simple verb, and 'for' is a preposition.
Morphology: 'Came' is the past simple tense of the irregular verb 'come'. The use of past simple ('came') suggests the action of arriving/coming is completed, setting the stage for the present experience ('This is').

Syntax: This is a simple declarative sentence. 'Lightning' is the subject, 'strikes' is the present simple verb, and 'every time she moves' is an adverbial clause of time modifying the verb 'strikes'. The clause 'she moves' is in the present simple tense, indicating a habitual or general truth.
Morphology: 'Strikes' is the third person singular present simple form of the verb 'strike'. 'Moves' is the third person singular present simple form of the verb 'move'. The 's' endings indicate agreement with the singular subjects 'Lightning' and 'she'.

Syntax: This is a simple sentence with a contraction. 'Everybody' is the subject, ''s' is the contraction for 'is', and 'watchin'' (a colloquial shortening of 'watching') is the present participle forming the present continuous tense with 'is'. 'Her' is the object pronoun.
Morphology: 'Watchin'' shows an informal morphological change where the final 'g' is dropped, common in spoken English and song lyrics. 'Everybody' is treated as a singular noun, hence the singular verb ''s' (is).

Syntax: This is a compound sentence joined by the coordinating conjunction 'But'. The first clause is 'she's lookin' at you' (subject + verb phrase + prepositional phrase). The second clause is implied from the previous line ('everybody's watchin' her'). 'Ooh, ooh' are interjections expressing emotion.
Morphology: 'Lookin'' is another example of the informal dropping of the 'g' (from 'looking'). The pronoun 'you' is in the object case because it is the object of the preposition 'at'.

Syntax: Line 20: 'We' (subject) + 'go' (verb) + 'fast' (adverb) + 'with the game we play' (prepositional phrase with an embedded relative clause 'we play'). Line 22: Interrogative word 'Who' + 'knows' (verb) + 'why it's gotta be this way' (noun clause as object). 'Gotta' is a contraction of 'got to'. Line 23: 'We' (subject) + 'say' (verb) + 'nothin' more' (object) + 'than we need' (adverbial clause of comparison). Line 24: 'I' (subject) + 'say' (verb) + 'your place' (object) + 'when we leave' (adverbial clause of time).
Morphology: 'Gotta' represents a significant informal morphological contraction of 'have got to' or 'got to', expressing necessity. 'Nothin'' is an informal contraction of 'nothing'. The verbs 'go', 'knows', 'say' are in the present simple tense, describing habitual actions or states.